libkcapi - Debian Package Tracker

general

source: libkcapi (main)
version: 1.5.1-2
maintainer: Daniel Baumann (DMD)
arch: all
std-ver: 4.7.4
VCS: Git (Browse, QA)

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

[pool directory]

o-o-stable: 1.2.1-1
oldstable: 1.4.0-1
stable: 1.4.0-1
testing: 1.5.1-2
unstable: 1.5.1-2

versioned links

1.2.1-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.4.0-1: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]
1.5.1-2: [.dsc, use dget on this link to retrieve source package] [changelog] [copyright] [rules] [control]

binaries

kcapi-tools
libkcapi-dev
libkcapi-doc
libkcapi1

action needed

3 security issues in bullseye high

There are 3 open security issues in bullseye.

3 important issues:

CVE-2026-71225: A flaw was found in libkcapi. When performing one-shot symmetric cipher operations on large inputs (over 64 KiB) in stateful modes such as Counter (CTR) or Cipher Block Chaining (CBC), the library improperly reuses the Initialization Vector (IV) for each internal data chunk. A remote attacker could potentially exploit this by making an application that uses libkcapi process specially crafted large inputs. This can lead to a significant weakening of data confidentiality, as the repeated IV use can expose relationships in encrypted plaintext, and may also affect data integrity by causing incorrect cryptographic processing.
CVE-2026-71226: Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
CVE-2026-71227: A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the _kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.

Created: 2026-08-06 Last update: 2026-08-18 11:00

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 3fc5f85a7cb61c886cf4dac100d728c0a871ddd6
Author: Daniel Baumann <daniel@debian.org>
Date:   Tue Oct 20 02:16:17 2026 +0200

    Wrap and sorting debian files.
    
    Signed-off-by: Daniel Baumann <daniel@debian.org>

Created: 2026-10-20 Last update: 2026-10-25 19:33

lintian reports 4 warnings normal

Lintian reports 4 warnings about this package. You should make the package lintian clean getting rid of them.

Created: 2026-09-20 Last update: 2026-09-20 19:01

3 low-priority security issues in trixie low

There are 3 open security issues in trixie.

3 issues left for the package maintainer to handle:

CVE-2026-71225: (needs triaging) A flaw was found in libkcapi. When performing one-shot symmetric cipher operations on large inputs (over 64 KiB) in stateful modes such as Counter (CTR) or Cipher Block Chaining (CBC), the library improperly reuses the Initialization Vector (IV) for each internal data chunk. A remote attacker could potentially exploit this by making an application that uses libkcapi process specially crafted large inputs. This can lead to a significant weakening of data confidentiality, as the repeated IV use can expose relationships in encrypted plaintext, and may also affect data integrity by causing incorrect cryptographic processing.
CVE-2026-71226: (needs triaging) Memory Corruption via Uncanceled AIO Requests on Error: libkcapi's one-shot AIO path can return an error before all submitted IOCBs are drained, allowing later kernel writes into caller-owned output buffers.
CVE-2026-71227: (needs triaging) A flaw was found in libkcapi. A local attacker can influence an application that uses the Asynchronous Input/Output (AIO) interface. By reusing an AIO-enabled handle after a prior completion error, the _kcapi_aio_read_all() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.

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

Created: 2026-08-06 Last update: 2026-09-25 04:30

news

[rss feed]

[2026-09-25] libkcapi 1.5.1-2 MIGRATED to testing (Debian testing watch)
[2026-09-20] Accepted libkcapi 1.5.1-2 (source) into unstable (Daniel Baumann)
[2026-09-19] Accepted libkcapi 1.5.1-1 (source) into unstable (Daniel Baumann)
[2026-09-19] Accepted libkcapi 1.4.0-2 (source) into unstable (Daniel Baumann)
[2022-02-27] libkcapi 1.4.0-1 MIGRATED to testing (Debian testing watch)
[2022-02-22] Accepted libkcapi 1.4.0-1 (source) into unstable (Mathieu Malaterre)
[2022-02-06] libkcapi 1.3.1-3 MIGRATED to testing (Debian testing watch)
[2022-01-31] Accepted libkcapi 1.3.1-3 (source) into unstable (Mathieu Malaterre)
[2022-01-28] Accepted libkcapi 1.3.1-2 (source) into unstable (Mathieu Malaterre)
[2021-08-31] libkcapi 1.3.1-1 MIGRATED to testing (Debian testing watch)
[2021-08-26] Accepted libkcapi 1.3.1-1 (source) into unstable (Mathieu Malaterre)
[2021-08-26] Accepted libkcapi 1.3.0-1 (source) into unstable (Mathieu Malaterre)
[2020-11-17] libkcapi 1.2.1-1 MIGRATED to testing (Debian testing watch)
[2020-11-12] Accepted libkcapi 1.2.1-1 (source) into unstable (Mathieu Malaterre)
[2020-07-06] libkcapi 1.2.0-1 MIGRATED to testing (Debian testing watch)
[2020-07-01] Accepted libkcapi 1.2.0-1 (source) into unstable (Mathieu Malaterre)
[2019-10-08] libkcapi 1.1.5-1 MIGRATED to testing (Debian testing watch)
[2019-10-02] Accepted libkcapi 1.1.5-1 (source) into unstable (Mathieu Malaterre)
[2018-10-30] libkcapi 1.1.3-1 MIGRATED to testing (Debian testing watch)
[2018-10-24] Accepted libkcapi 1.1.3-1 (source) into unstable (Mathieu Malaterre)
[2018-02-14] libkcapi 1.0.3-2 MIGRATED to testing (Debian testing watch)
[2018-02-08] Accepted libkcapi 1.0.3-2 (source) into unstable (Mathieu Malaterre)
[2018-02-07] Accepted libkcapi 1.0.3-1 (source) into unstable (Mathieu Malaterre)
[2018-01-21] libkcapi 1.0.2-1 MIGRATED to testing (Debian testing watch)
[2018-01-19] Accepted libkcapi 1.0.2-2 (source) into experimental (Mathieu Malaterre)
[2018-01-15] Accepted libkcapi 1.0.2-1 (source) into unstable (Mathieu Malaterre)
[2018-01-14] libkcapi 1.0.1-2 MIGRATED to testing (Debian testing watch)
[2018-01-09] Accepted libkcapi 1.0.1-2 (source) into unstable (Mathieu Malaterre)
[2018-01-08] libkcapi 1.0.1-1 MIGRATED to testing (Debian testing watch)
[2018-01-03] Accepted libkcapi 1.0.1-1 (source) into unstable (Mathieu Malaterre)

bugs [bug history graph]

all: 0

links

homepage
lintian (0, 4)
buildd: logs, reproducibility
popcon
browse source code
other distros
security tracker

ubuntu

[Information about Ubuntu for Debian Developers]

version: 1.4.0-1ubuntu5
1 bug
patches for 1.4.0-1ubuntu5