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general

source: libkcapi (main)
version: 1.4.0-1
maintainer: Mathieu Malaterre (DMD) (LowNMU)
arch: all
std-ver: 4.6.0
VCS: Git (Browse, QA)

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

[pool directory]

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

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]

binaries

kcapi-tools
libkcapi-dev
libkcapi-doc
libkcapi1

action needed

Problems while searching for a new upstream version high

uscan had problems while searching for a new upstream version:

In watchfile debian/watch, reading webpage
  https://www.chronox.de/libkcapi.html failed: 404 Not Found

Created: 2025-11-26 Last update: 2026-08-06 09:00

3 security issues in trixie high

There are 3 open security issues in trixie.

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: 2026-08-06 07:18

3 security issues in sid high

There are 3 open security issues in sid.

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: 2026-08-06 07:18

3 security issues in forky high

There are 3 open security issues in forky.

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: 2026-08-06 07:18

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: 2026-08-06 07:18

3 security issues in bookworm high

There are 3 open security issues in bookworm.

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: 2026-08-06 07:18

lintian reports 2 warnings normal

Lintian reports 2 warnings about this package. You should make the package lintian clean getting rid of them.

Created: 2022-07-30 Last update: 2024-03-01 12:04

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 4.6.0).

Created: 2022-05-11 Last update: 2026-03-31 15:01

news

[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)
[2018-01-03] libkcapi 1.0.0-2 MIGRATED to testing (Debian testing watch)
[2017-12-29] Accepted libkcapi 1.0.0-2 (source) into unstable (Mathieu Malaterre)
[2017-12-28] Accepted libkcapi 1.0.0-1 (source amd64 all) into unstable, unstable (Mathieu Malaterre)

bugs [bug history graph]

all: 0

links

homepage
lintian (0, 2)
buildd: logs, reproducibility
popcon
browse source code
other distros
security tracker

ubuntu

[Information about Ubuntu for Debian Developers]

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

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