Most recent entries from all

ALSA-2026:67265 — Moderate: libkcapi security, bug fix, and enhancement update

Affected: AlmaLinux:9: libkcapi, AlmaLinux:9: libkcapi-hmaccalc

libkcapi allows user-space to access the Linux kernel crypto API. This library uses the netlink interface and exports easy to use APIs so that a developer does not need to consider the low-level netlink interface handling. The library does not implement any cipher algorithms. All consumer requests are sent to the kernel for processing. Results from the kernel crypto API are returned to the consumer via the library API. The kernel interface and therefore this library can be used by unprivileged processes.

Security Fix(es):

* libkcapi: IV reuse in libkcapi one-shot symmetric cipher chunking causes cipher state reset across chunk boundaries (CVE-2026-71225) * libkcapi: Memory corruption via uncanceled AIO requests on error in libkcapi's one-shot AIO path (CVE-2026-71226) * libkcapi: Infinite loop denial of service in libkcapi _kcapi_aio_read_all() due to unhandled io_getevents() timeout return (CVE-2026-71227)

Bug Fix(es) and Enhancement(s):

* libkcapi: AEAD Decrypt Auth Check Skipped for Zero-Length Input in `kcapi-enc` [almalinux-9.8.z] (JIRA:AlmaLinux-242667)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

BELL-CVE-2026-71227

Affected: Alpaquita:23: libkcapi, Alpaquita:25: libkcapi, Alpaquita:stream: libkcapi

EUVD-2026-372776

fkie_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.

GHSA-c5mv-c5vm-62w5

msrc_CVE-2026-71227 — Libkcapi: infinite loop denial of service in libkcapi _kcapi_aio_read_all() due to unhandled io_getevents() timeout ret…

msrc_CVE-2026-71227

OESA-2026-3440 — libkcapi security update

Affected: openEuler:24.03-LTS-SP4: libkcapi, openEuler:20.03-LTS-SP4: libkcapi, openEuler:22.03-LTS-SP4: libkcapi, openEuler:24.03-LTS-SP1: libkcapi, openEuler:24.03-LTS-SP3: libkcapi

The Linux kernel exports a Netlink interface of type AF_ALG to allow user space to utilize the kernel crypto API. libkcapi uses this Netlink interface and exports easy to use APIs so that a developer does not need to consider the low-level Netlink interface handling. The library does not implement any cipher algorithms. All consumer requests are sent to the kernel for processing. Results from the kernel crypto API are returned to the consumer via the library API. Security Fix(es):

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-2026-71226)

RHSA-2026:56985 — Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

libkcapi: IV reuse in libkcapi one-shot symmetric cipher chunking causes cipher state reset across chunk boundaries libkcapi: Memory corruption via uncanceled AIO requests on error in libkcapi's one-shot AIO path libkcapi: Infinite loop denial of service in libkcapi _kcapi_aio_read_all() due to unhandled io_getevents() timeout return

RHSA-2026:67265 — Red Hat Security Advisory: libkcapi security, bug fix, and enhancement update

RLSA-2026:67265 — Moderate: libkcapi security, bug fix, and enhancement update

Affected: Rocky Linux:9: libkcapi

Security Fix(es):

* libkcapi: IV reuse in libkcapi one-shot symmetric cipher chunking causes cipher state reset across chunk boundaries (CVE-2026-71225)

* libkcapi: Memory corruption via uncanceled AIO requests on error in libkcapi's one-shot AIO path (CVE-2026-71226)

* libkcapi: Infinite loop denial of service in libkcapi _kcapi_aio_read_all() due to unhandled io_getevents() timeout return (CVE-2026-71227)

Bug Fix(es) and Enhancement(s):

* libkcapi: AEAD Decrypt Auth Check Skipped for Zero-Length Input in `kcapi-enc` [rhel-9.8.z] (JIRA:Rocky Linux-242667)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

UBUNTU-CVE-2026-71227

Affected: Ubuntu:Pro:FIPS:16.04:LTS: libkcapi, Ubuntu:18.04:LTS: libkcapi, Ubuntu:Pro:FIPS-updates:18.04:LTS: libkcapi, Ubuntu:Pro:FIPS:18.04:LTS: libkcapi, Ubuntu:20.04:LTS: libkcapi, Ubuntu:Pro:FIPS-updates:20.04:LTS: libkcapi, Ubuntu:Pro:FIPS:20.04:LTS: libkcapi, Ubuntu:22.04:LTS: libkcapi, Ubuntu:Pro:FIPS-preview:22.04:LTS: libkcapi, Ubuntu:Pro:FIPS-updates:22.04:LTS: libkcapi and 2 more

WID-SEC-W-2026-3322 — Red Hat Enterprise Linux (libkcapi): Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um Informationen offenzulegen, Daten zu manipulieren, Speicherbeschädigungen zu verursachen oder einen Denial-of-Service-Zustand auszulösen.