proftpd-dfsg - Debian Package Tracker

general

source: proftpd-dfsg (main)
version: 1.3.9c~dfsg-1
maintainer: ProFTPD Maintainance Team (archive) (DMD)
uploaders: Francesco Paolo Lovergine [DMD] – Hilmar Preuße [DMD]
arch: all any
std-ver: 4.7.0
VCS: Git (Browse, QA)

versions [more versions can be listed by madison] [old versions available from snapshot.debian.org]

[pool directory]

o-o-stable: 1.3.7a+dfsg-12+deb11u2
o-o-sec: 1.3.7a+dfsg-12+deb11u5
oldstable: 1.3.8+dfsg-4+deb12u5
old-sec: 1.3.8+dfsg-4+deb12u4
stable: 1.3.8.c+dfsg-4+deb13u2
testing: 1.3.9c~dfsg-1
unstable: 1.3.9c~dfsg-1

versioned links

1.3.7a+dfsg-12+deb11u2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.3.7a+dfsg-12+deb11u5: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.3.8+dfsg-4+deb12u4: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.3.8+dfsg-4+deb12u5: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.3.8.c+dfsg-4+deb13u2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.3.9c~dfsg-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]

binaries

proftpd-core (2 bugs: 0, 1, 1, 0)
proftpd-dev
proftpd-doc
proftpd-mod-crypto (1 bugs: 0, 1, 0, 0)
proftpd-mod-geoip
proftpd-mod-ldap
proftpd-mod-mysql
proftpd-mod-odbc
proftpd-mod-pgsql
proftpd-mod-snmp
proftpd-mod-sqlite
proftpd-mod-wrap

action needed

5 security issues in trixie high

There are 5 open security issues in trixie.

3 important issues:

CVE-2026-53994: ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet_read() function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere in the read path to underflow to approximately 4 GB. That oversized request reaches the core memory allocator, where the rounded size is computed in size_t but passed to new_block() as a 32-bit int; the low 32 bits of 0x100000000 are 0, so new_block() returns a small (~512-byte) block while the caller is told it received ~4 GB. The subsequent fill loop then streams attacker-controlled bytes past the end of the 544-byte allocation, producing an attacker-controlled heap buffer overflow. An authenticated user can crash the per-connection ProFTPD session child on demand with a single malformed SFTP packet (packet_len=0 followed by a body greater than approximately 544 bytes), producing reliable authenticated remote denial of service. Depending on heap layout and adjacent allocations, heap metadata corruption and further consequences beyond denial of service may be possible, though only denial of service is demonstrated by the supplied proof of concept.
CVE-2026-63090: ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module that allows authenticated low-privilege attackers to achieve arbitrary code execution by sending crafted SFTP packet fragments exceeding the 16 KB reassembly buffer in the fxp.c component. Attackers can supply oversized fragments to trigger an incorrectly conditioned reallocation, corrupt pool freelist metadata, overwrite the root_fs BSS global pointer to reference a fake filesystem struct, and redirect pr_fsio_stat() to system() via a crafted RENAME request.
CVE-2026-63091: ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64_MAX, which results in a negative off_t value. Attackers can exploit the subsequent conversion to uint32_t, causing an approximately 4 GB requested read length and forcing the server to read beyond the end of the SSH channel data and write overread process memory into the uploaded file. In tested configurations, the disclosed data contains libc, libcrypto, and PIE pointers sufficient to derive their randomized base addresses, thereby bypassing ASLR and enabling reliable exploitation of memory corruption vulnerabilities in the same process.

2 issues left for the package maintainer to handle:

CVE-2026-35025: (postponed; to be fixed through a stable update) ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.
CVE-2026-44331: (needs triaging) In ProFTPD through 1.3.9a before 7666224, a SQL injection vulnerability in sqltab_fetch_clients_cb() in contrib/mod_wrap2_sql.c allows a remote attacker to inject arbitrary SQL commands via a crafted domain name that is accessed in a reverse DNS lookup. When "UseReverseDNS on" is enabled, the attacker-supplied hostname is passed unescaped into SQL queries. The character restrictions of DNS names may affect exploitability.

You can find information about how to handle these issues in the security team's documentation.

Created: 2026-04-28 Last update: 2026-07-21 06:30

1 security issue in sid high

There is 1 open security issue in sid.

1 important issue:

CVE-2026-35025: ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.

Created: 2026-06-24 Last update: 2026-07-21 06:30

1 security issue in forky high

There is 1 open security issue in forky.

1 important issue:

CVE-2026-35025: ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.

Created: 2026-06-24 Last update: 2026-07-21 06:30

6 security issues in bullseye high

There are 6 open security issues in bullseye.

6 important issues:

CVE-2026-35025: ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.
CVE-2026-42167: mod_sql in ProFTPD before 1.3.9a allows remote attackers to execute arbitrary code via a username, in scenarios where there is logging of USER requests with an expansion such as %U, and the SQL backend allows commands (e.g., COPY TO PROGRAM).
CVE-2026-44331: In ProFTPD through 1.3.9a before 7666224, a SQL injection vulnerability in sqltab_fetch_clients_cb() in contrib/mod_wrap2_sql.c allows a remote attacker to inject arbitrary SQL commands via a crafted domain name that is accessed in a reverse DNS lookup. When "UseReverseDNS on" is enabled, the attacker-supplied hostname is passed unescaped into SQL queries. The character restrictions of DNS names may affect exploitability.
CVE-2026-53994: ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet_read() function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere in the read path to underflow to approximately 4 GB. That oversized request reaches the core memory allocator, where the rounded size is computed in size_t but passed to new_block() as a 32-bit int; the low 32 bits of 0x100000000 are 0, so new_block() returns a small (~512-byte) block while the caller is told it received ~4 GB. The subsequent fill loop then streams attacker-controlled bytes past the end of the 544-byte allocation, producing an attacker-controlled heap buffer overflow. An authenticated user can crash the per-connection ProFTPD session child on demand with a single malformed SFTP packet (packet_len=0 followed by a body greater than approximately 544 bytes), producing reliable authenticated remote denial of service. Depending on heap layout and adjacent allocations, heap metadata corruption and further consequences beyond denial of service may be possible, though only denial of service is demonstrated by the supplied proof of concept.
CVE-2026-63090: ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module that allows authenticated low-privilege attackers to achieve arbitrary code execution by sending crafted SFTP packet fragments exceeding the 16 KB reassembly buffer in the fxp.c component. Attackers can supply oversized fragments to trigger an incorrectly conditioned reallocation, corrupt pool freelist metadata, overwrite the root_fs BSS global pointer to reference a fake filesystem struct, and redirect pr_fsio_stat() to system() via a crafted RENAME request.
CVE-2026-63091: ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64_MAX, which results in a negative off_t value. Attackers can exploit the subsequent conversion to uint32_t, causing an approximately 4 GB requested read length and forcing the server to read beyond the end of the SSH channel data and write overread process memory into the uploaded file. In tested configurations, the disclosed data contains libc, libcrypto, and PIE pointers sufficient to derive their randomized base addresses, thereby bypassing ASLR and enabling reliable exploitation of memory corruption vulnerabilities in the same process.

Created: 2026-04-28 Last update: 2026-07-21 06:30

5 security issues in bookworm high

There are 5 open security issues in bookworm.

4 important issues:

CVE-2026-35025: ProFTPD through 1.3.9b and 1.3.10rc2 contains an access control bypass vulnerability that allows authenticated FTP users to circumvent Directory ACL restrictions by prefixing paths with /proc/self/root in the RNFR command handler. Attackers can exploit the unresolved symlink components in dir_canonical_path() to cause dir_check() to perform lexical path comparisons that match no configured Directory block, enabling rename operations on files in DenyAll-protected directories and subsequent retrieval of those files. Mitigation: Sessions configured with DefaultRoot (chroot) are not affected, as chroot changes the directory to which /proc/self/root resolves.
CVE-2026-53994: ProFTPD mod_sftp contains a heap-based buffer overflow reachable by an authenticated SFTP user. The fxp_packet_read() function accepts the attacker-supplied 32-bit big-endian SFTP packet length without a minimum sanity check. A value of 0 causes an unsigned subtraction elsewhere in the read path to underflow to approximately 4 GB. That oversized request reaches the core memory allocator, where the rounded size is computed in size_t but passed to new_block() as a 32-bit int; the low 32 bits of 0x100000000 are 0, so new_block() returns a small (~512-byte) block while the caller is told it received ~4 GB. The subsequent fill loop then streams attacker-controlled bytes past the end of the 544-byte allocation, producing an attacker-controlled heap buffer overflow. An authenticated user can crash the per-connection ProFTPD session child on demand with a single malformed SFTP packet (packet_len=0 followed by a body greater than approximately 544 bytes), producing reliable authenticated remote denial of service. Depending on heap layout and adjacent allocations, heap metadata corruption and further consequences beyond denial of service may be possible, though only denial of service is demonstrated by the supplied proof of concept.
CVE-2026-63090: ProFTPD before 1.3.9c and 1.3.10rc3 contains a heap-based buffer overflow vulnerability in the mod_sftp module that allows authenticated low-privilege attackers to achieve arbitrary code execution by sending crafted SFTP packet fragments exceeding the 16 KB reassembly buffer in the fxp.c component. Attackers can supply oversized fragments to trigger an incorrectly conditioned reallocation, corrupt pool freelist metadata, overwrite the root_fs BSS global pointer to reference a fake filesystem struct, and redirect pr_fsio_stat() to system() via a crafted RENAME request.
CVE-2026-63091: ProFTPD before 1.3.9c and 1.3.10rc3 contains a signed integer overflow vulnerability in the mod_sftp module's SCP size-record parser that allows authenticated low-privilege attackers to bypass ASLR by sending a crafted file size value of UINT64_MAX, which results in a negative off_t value. Attackers can exploit the subsequent conversion to uint32_t, causing an approximately 4 GB requested read length and forcing the server to read beyond the end of the SSH channel data and write overread process memory into the uploaded file. In tested configurations, the disclosed data contains libc, libcrypto, and PIE pointers sufficient to derive their randomized base addresses, thereby bypassing ASLR and enabling reliable exploitation of memory corruption vulnerabilities in the same process.

1 issue left for the package maintainer to handle:

CVE-2026-44331: (needs triaging) In ProFTPD through 1.3.9a before 7666224, a SQL injection vulnerability in sqltab_fetch_clients_cb() in contrib/mod_wrap2_sql.c allows a remote attacker to inject arbitrary SQL commands via a crafted domain name that is accessed in a reverse DNS lookup. When "UseReverseDNS on" is enabled, the attacker-supplied hostname is passed unescaped into SQL queries. The character restrictions of DNS names may affect exploitability.

You can find information about how to handle this issue in the security team's documentation.

Created: 2026-05-06 Last update: 2026-07-21 06:30

Does not build reproducibly during testing normal

A package building reproducibly enables third parties to verify that the source matches the distributed binaries. It has been identified that this source package produced different results, failed to build or had other issues in a test environment. Please read about how to improve the situation!

Created: 2026-07-16 Last update: 2026-07-22 08:00

1 new commit since last upload, is it time to release? normal

vcswatch reports that this package seems to have new commits in its VCS but has not yet updated debian/changelog. You should consider updating the Debian changelog and uploading this new version into the archive.

Here are the relevant commit logs:

commit d67d2631bc5d334ad41bf694251459fca4d0a4de
Author: Hilmar Preuße <hille42@web.de>
Date:   Mon Jul 20 17:24:33 2026 +0200

    Add CVE numbers for last d/changelog entry.

Created: 2026-07-20 Last update: 2026-07-21 22:49

Issues found with some translations low

Automatic checks made by the Debian l10n team found some issues with the translations contained in this package. You should check the l10n status report for more information.

Issues can be things such as missing translations, problematic translated strings, outdated PO files, unknown languages, etc.

Created: 2020-07-24 Last update: 2025-08-18 02:34

Standards version of the package is outdated. wishlist

The package should be updated to follow the last version of Debian Policy (Standards-Version 4.7.4 instead of 4.7.0).

Created: 2025-02-21 Last update: 2026-07-11 06:20

testing migrations

This package will soon be part of the auto-openssl transition. You might want to ensure that your package is ready for it. You can probably find supplementary information in the debian-release archives or in the corresponding release.debian.org bug.

news

[rss feed]

[2026-07-16] proftpd-dfsg 1.3.9c~dfsg-1 MIGRATED to testing (Debian testing watch)
[2026-07-10] Accepted proftpd-dfsg 1.3.9c~dfsg-1 (source) into unstable (Hilmar Preuße)
[2026-06-13] proftpd-dfsg 1.3.9b~dfsg-1 MIGRATED to testing (Debian testing watch)
[2026-06-07] Accepted proftpd-dfsg 1.3.9b~dfsg-1 (source) into unstable (Hilmar Preuße)
[2026-05-14] proftpd-dfsg 1.3.9a~dfsg-1 MIGRATED to testing (Debian testing watch)
[2026-05-06] Accepted proftpd-dfsg 1.3.9a~dfsg-1 (source) into unstable (Hilmar Preuße)
[2026-05-02] Accepted proftpd-dfsg 1.3.8+dfsg-4+deb12u5 (source) into oldstable-proposed-updates (Debian FTP Masters) (signed by: Hilmar Preuße)
[2026-05-02] Accepted proftpd-dfsg 1.3.8.c+dfsg-4+deb13u2 (source) into proposed-updates (Debian FTP Masters) (signed by: Hilmar Preuße)
[2026-05-02] proftpd-dfsg 1.3.9~dfsg-5 MIGRATED to testing (Debian testing watch)
[2026-04-28] Accepted proftpd-dfsg 1.3.9~dfsg-5 (source) into unstable (Hilmar Preuße)
[2025-11-11] proftpd-dfsg 1.3.9~dfsg-4 MIGRATED to testing (Debian testing watch)
[2025-11-09] Accepted proftpd-dfsg 1.3.8.c+dfsg-4+deb13u1 (source) into proposed-updates (Debian FTP Masters) (signed by: Hilmar Preuße)
[2025-11-08] Accepted proftpd-dfsg 1.3.9~dfsg-4 (source) into unstable (Hilmar Preuße)
[2025-09-11] proftpd-dfsg 1.3.9~dfsg-3 MIGRATED to testing (Debian testing watch)
[2025-09-09] Accepted proftpd-dfsg 1.3.9~dfsg-3 (source) into unstable (Hilmar Preuße)
[2025-08-31] proftpd-dfsg 1.3.9~dfsg-2 MIGRATED to testing (Debian testing watch)
[2025-08-15] Accepted proftpd-dfsg 1.3.9~dfsg-2 (source) into unstable (Hilmar Preuße)
[2025-05-12] proftpd-dfsg 1.3.8.c+dfsg-4 MIGRATED to testing (Debian testing watch)
[2025-05-01] Accepted proftpd-dfsg 1.3.8.c+dfsg-4 (source) into unstable (Hilmar Preuße)
[2025-04-19] Accepted proftpd-dfsg 1.3.8.c+dfsg-3 (source) into unstable (Hilmar Preuße)
[2025-03-16] Accepted proftpd-dfsg 1.3.9~dfsg-1 (source) into experimental (Hilmar Preuße)
[2025-03-08] proftpd-dfsg 1.3.8.c+dfsg-2 MIGRATED to testing (Debian testing watch)
[2025-03-04] Accepted proftpd-dfsg 1.3.8.c+dfsg-2 (source) into unstable (Hilmar Preuße)
[2025-03-02] Accepted proftpd-dfsg 1.3.7a+dfsg-12+deb11u5 (source) into oldstable-security (Bastien Roucariès) (signed by: Bastien ROUCARIÈS)
[2024-12-17] proftpd-dfsg 1.3.8.c+dfsg-1 MIGRATED to testing (Debian testing watch)
[2024-12-13] Accepted proftpd-dfsg 1.3.8.c+dfsg-1 (source) into unstable (Hilmar Preuße)
[2024-12-12] Accepted proftpd-dfsg 1.3.8+dfsg-4+deb12u4 (source) into proposed-updates (Debian FTP Masters) (signed by: Hilmar Preuße)
[2024-12-10] Accepted proftpd-dfsg 1.3.8+dfsg-4+deb12u4 (source) into stable-security (Debian FTP Masters) (signed by: Hilmar Preuße)
[2024-11-29] Accepted proftpd-dfsg 1.3.7a+dfsg-12+deb11u3 (source) into oldstable-security (Bastien Roucariès) (signed by: Bastien ROUCARIÈS)
[2024-11-18] proftpd-dfsg 1.3.8.b+dfsg-4 MIGRATED to testing (Debian testing watch)

bugs [bug history graph]

all: 9
RC: 0
I&N: 6
M&W: 3
F&P: 0
patch: 0

links

homepage
lintian
buildd: logs, reproducibility, cross
popcon
browse source code
other distros
security tracker
l10n (-, 87)
debian patches
debci

ubuntu

[Information about Ubuntu for Debian Developers]

version: 1.3.9b~dfsg-1