OESA-2026-3440

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Source
https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3440
Import Source
https://repo.openeuler.org/security/data/osv/OESA-2026-3440.json
JSON Data
https://api.osv.dev/v1/vulns/OESA-2026-3440
Upstream
Published
2026-08-20T09:58:11Z
Modified
2026-08-20T10:15:09.185006362Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H CVSS Calculator
Summary
libkcapi security update
Details

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)

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 kcapiaioreadall() function can enter a non-terminating wait loop. This can lead to a persistent denial of service, making the affected application or thread unresponsive.(CVE-2026-71227)

Database specific 
{
    "severity": "High"
}
References

Affected packages

openEuler:20.03-LTS-SP4
libkcapi

Package

Name
libkcapi
Purl
pkg:rpm/openEuler/libkcapi&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.2.0-10.oe2003sp4

Ecosystem specific 

{
    "x86_64": [
        "libkcapi-1.2.0-10.oe2003sp4.x86_64.rpm",
        "libkcapi-debuginfo-1.2.0-10.oe2003sp4.x86_64.rpm",
        "libkcapi-debugsource-1.2.0-10.oe2003sp4.x86_64.rpm",
        "libkcapi-devel-1.2.0-10.oe2003sp4.x86_64.rpm",
        "libkcapi-tests-1.2.0-10.oe2003sp4.x86_64.rpm"
    ],
    "aarch64": [
        "libkcapi-1.2.0-10.oe2003sp4.aarch64.rpm",
        "libkcapi-debuginfo-1.2.0-10.oe2003sp4.aarch64.rpm",
        "libkcapi-debugsource-1.2.0-10.oe2003sp4.aarch64.rpm",
        "libkcapi-devel-1.2.0-10.oe2003sp4.aarch64.rpm",
        "libkcapi-tests-1.2.0-10.oe2003sp4.aarch64.rpm"
    ],
    "src": [
        "libkcapi-1.2.0-10.oe2003sp4.src.rpm"
    ],
    "noarch": [
        "libkcapi-help-1.2.0-10.oe2003sp4.noarch.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3440.json"
openEuler:22.03-LTS-SP4
libkcapi

Package

Name
libkcapi
Purl
pkg:rpm/openEuler/libkcapi&distro=openEuler-22.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.3.1-9.oe2203sp4

Ecosystem specific 

{
    "x86_64": [
        "libkcapi-1.3.1-9.oe2203sp4.x86_64.rpm",
        "libkcapi-debuginfo-1.3.1-9.oe2203sp4.x86_64.rpm",
        "libkcapi-debugsource-1.3.1-9.oe2203sp4.x86_64.rpm",
        "libkcapi-devel-1.3.1-9.oe2203sp4.x86_64.rpm",
        "libkcapi-tests-1.3.1-9.oe2203sp4.x86_64.rpm"
    ],
    "aarch64": [
        "libkcapi-1.3.1-9.oe2203sp4.aarch64.rpm",
        "libkcapi-debuginfo-1.3.1-9.oe2203sp4.aarch64.rpm",
        "libkcapi-debugsource-1.3.1-9.oe2203sp4.aarch64.rpm",
        "libkcapi-devel-1.3.1-9.oe2203sp4.aarch64.rpm",
        "libkcapi-tests-1.3.1-9.oe2203sp4.aarch64.rpm"
    ],
    "src": [
        "libkcapi-1.3.1-9.oe2203sp4.src.rpm"
    ],
    "noarch": [
        "libkcapi-help-1.3.1-9.oe2203sp4.noarch.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3440.json"
openEuler:24.03-LTS-SP1
libkcapi

Package

Name
libkcapi
Purl
pkg:rpm/openEuler/libkcapi&distro=openEuler-24.03-LTS-SP1

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.0-10.oe2403sp1

Ecosystem specific 

{
    "x86_64": [
        "libkcapi-1.4.0-10.oe2403sp1.x86_64.rpm",
        "libkcapi-debuginfo-1.4.0-10.oe2403sp1.x86_64.rpm",
        "libkcapi-debugsource-1.4.0-10.oe2403sp1.x86_64.rpm",
        "libkcapi-devel-1.4.0-10.oe2403sp1.x86_64.rpm",
        "libkcapi-tests-1.4.0-10.oe2403sp1.x86_64.rpm"
    ],
    "aarch64": [
        "libkcapi-1.4.0-10.oe2403sp1.aarch64.rpm",
        "libkcapi-debuginfo-1.4.0-10.oe2403sp1.aarch64.rpm",
        "libkcapi-debugsource-1.4.0-10.oe2403sp1.aarch64.rpm",
        "libkcapi-devel-1.4.0-10.oe2403sp1.aarch64.rpm",
        "libkcapi-tests-1.4.0-10.oe2403sp1.aarch64.rpm"
    ],
    "src": [
        "libkcapi-1.4.0-10.oe2403sp1.src.rpm"
    ],
    "noarch": [
        "libkcapi-help-1.4.0-10.oe2403sp1.noarch.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3440.json"
openEuler:24.03-LTS-SP3
libkcapi

Package

Name
libkcapi
Purl
pkg:rpm/openEuler/libkcapi&distro=openEuler-24.03-LTS-SP3

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.0-10.oe2403sp3

Ecosystem specific 

{
    "x86_64": [
        "libkcapi-1.4.0-10.oe2403sp3.x86_64.rpm",
        "libkcapi-debuginfo-1.4.0-10.oe2403sp3.x86_64.rpm",
        "libkcapi-debugsource-1.4.0-10.oe2403sp3.x86_64.rpm",
        "libkcapi-devel-1.4.0-10.oe2403sp3.x86_64.rpm",
        "libkcapi-tests-1.4.0-10.oe2403sp3.x86_64.rpm"
    ],
    "aarch64": [
        "libkcapi-1.4.0-10.oe2403sp3.aarch64.rpm",
        "libkcapi-debuginfo-1.4.0-10.oe2403sp3.aarch64.rpm",
        "libkcapi-debugsource-1.4.0-10.oe2403sp3.aarch64.rpm",
        "libkcapi-devel-1.4.0-10.oe2403sp3.aarch64.rpm",
        "libkcapi-tests-1.4.0-10.oe2403sp3.aarch64.rpm"
    ],
    "src": [
        "libkcapi-1.4.0-10.oe2403sp3.src.rpm"
    ],
    "noarch": [
        "libkcapi-help-1.4.0-10.oe2403sp3.noarch.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3440.json"
openEuler:24.03-LTS-SP4
libkcapi

Package

Name
libkcapi
Purl
pkg:rpm/openEuler/libkcapi&distro=openEuler-24.03-LTS-SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.4.0-10.oe2403sp4

Ecosystem specific 

{
    "x86_64": [
        "libkcapi-1.4.0-10.oe2403sp4.x86_64.rpm",
        "libkcapi-debuginfo-1.4.0-10.oe2403sp4.x86_64.rpm",
        "libkcapi-debugsource-1.4.0-10.oe2403sp4.x86_64.rpm",
        "libkcapi-devel-1.4.0-10.oe2403sp4.x86_64.rpm",
        "libkcapi-tests-1.4.0-10.oe2403sp4.x86_64.rpm"
    ],
    "aarch64": [
        "libkcapi-1.4.0-10.oe2403sp4.aarch64.rpm",
        "libkcapi-debuginfo-1.4.0-10.oe2403sp4.aarch64.rpm",
        "libkcapi-debugsource-1.4.0-10.oe2403sp4.aarch64.rpm",
        "libkcapi-devel-1.4.0-10.oe2403sp4.aarch64.rpm",
        "libkcapi-tests-1.4.0-10.oe2403sp4.aarch64.rpm"
    ],
    "src": [
        "libkcapi-1.4.0-10.oe2403sp4.src.rpm"
    ],
    "noarch": [
        "libkcapi-help-1.4.0-10.oe2403sp4.noarch.rpm"
    ]
}

Database specific

source 
"https://repo.openeuler.org/security/data/osv/OESA-2026-3440.json"