OESA-2026-4425

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-4425

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-4425.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-4425

Upstream

CVE-2026-104036

Published

2026-10-22T14:35:00Z

Modified

2026-10-22T14:45:05Z

Severity

5.8 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:H CVSS Calculator

Summary

sssd security update

Details

Provides a set of daemons to manage access to remote directories and authentication mechanisms. It provides an NSS and PAM interface toward the system and a pluggable back end system to connect to multiple different account sources. It is also the basis to provide client auditing and policy services for projects like FreeIPA.

Security Fix(es):

A flaw was found in SSSD's NFS idmap plugin. When retrieving cached user or group names, the plugin detects if an entry exceeds the destination buffer size but fails to abort before copying data. A local attacker can trigger this vulnerability by requesting identity lookups that resolve to oversized cached entries, resulting in an out-of-bounds write. This flaw primarily leads to a Denial of Service (DoS) by crashing the identity mapping service, and may also corrupt adjacent process memory.(CVE-2026-104036)

Database specific

{
    "severity":  "Medium"
}

References

Affected packages

openEuler:22.03-LTS-SP4 / sssd

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.6.1-34.oe2203sp4

Ecosystem specific

{
    "aarch64":  [
        "python3-sssd-2.6.1-34.oe2203sp4.aarch64.rpm",
        "sssd-2.6.1-34.oe2203sp4.aarch64.rpm",
        "sssd-debuginfo-2.6.1-34.oe2203sp4.aarch64.rpm",
        "sssd-debugsource-2.6.1-34.oe2203sp4.aarch64.rpm",
        "sssd-devel-2.6.1-34.oe2203sp4.aarch64.rpm"
    ],
    "noarch":  [
        "sssd-help-2.6.1-34.oe2203sp4.noarch.rpm"
    ],
    "src":  [
        "sssd-2.6.1-34.oe2203sp4.src.rpm"
    ],
    "x86_64":  [
        "python3-sssd-2.6.1-34.oe2203sp4.x86_64.rpm",
        "sssd-2.6.1-34.oe2203sp4.x86_64.rpm",
        "sssd-debuginfo-2.6.1-34.oe2203sp4.x86_64.rpm",
        "sssd-debugsource-2.6.1-34.oe2203sp4.x86_64.rpm",
        "sssd-devel-2.6.1-34.oe2203sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-4425.json"