OESA-2026-3646

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3646

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-3646.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-3646

Upstream

CVE-2026-68742

CVE-2026-68744

Published

2026-09-05T15:03:28Z

Modified

2026-09-05T15:16:37Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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. The sss_nss_protocol_parse_addr() function in the NSS responder does not validate the addrlen field against the remaining packet body size. A local attacker can exploit this via a crafted GETHOSTBYADDR request to the NSS responder socket, causing an out-of-bounds read and process crash, resulting in a denial of service.(CVE-2026-68742)

A flaw was found in SSSD. The sss_nss_protocol_fill_initgr() function in the NSS responder pre-allocates reply space for all group entries but does not shrink the packet when groups are skipped, causing uninitialized heap bytes to be transmitted to the client. A local attacker can exploit this to disclose cached directory data and heap layout information from the sssd_nss process.(CVE-2026-68744)

Database specific

{
    "severity": "Medium"
}

References

Affected packages

openEuler:24.03-LTS-SP1 / sssd

Package

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

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

2.9.4-24.oe2403sp1

Ecosystem specific

{
    "aarch64": [
        "libipa_hbac-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libipa_hbac-devel-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_autofs-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_certmap-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_certmap-devel-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_idmap-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_idmap-devel-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_nss_idmap-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_nss_idmap-devel-2.9.4-24.oe2403sp1.aarch64.rpm",
        "libsss_sudo-2.9.4-24.oe2403sp1.aarch64.rpm",
        "python3-libipa_hbac-2.9.4-24.oe2403sp1.aarch64.rpm",
        "python3-libsss_nss_idmap-2.9.4-24.oe2403sp1.aarch64.rpm",
        "python3-sss-2.9.4-24.oe2403sp1.aarch64.rpm",
        "python3-sss-murmur-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-ad-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-client-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-common-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-common-pac-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-dbus-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-debuginfo-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-debugsource-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-idp-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-ipa-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-kcm-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-krb5-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-krb5-common-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-ldap-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-nfs-idmap-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-proxy-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-tools-2.9.4-24.oe2403sp1.aarch64.rpm",
        "sssd-winbind-idmap-2.9.4-24.oe2403sp1.aarch64.rpm"
    ],
    "noarch": [
        "python3-sssdconfig-2.9.4-24.oe2403sp1.noarch.rpm",
        "sssd-help-2.9.4-24.oe2403sp1.noarch.rpm"
    ],
    "src": [
        "sssd-2.9.4-24.oe2403sp1.src.rpm"
    ],
    "x86_64": [
        "libipa_hbac-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libipa_hbac-devel-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_autofs-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_certmap-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_certmap-devel-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_idmap-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_idmap-devel-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_nss_idmap-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_nss_idmap-devel-2.9.4-24.oe2403sp1.x86_64.rpm",
        "libsss_sudo-2.9.4-24.oe2403sp1.x86_64.rpm",
        "python3-libipa_hbac-2.9.4-24.oe2403sp1.x86_64.rpm",
        "python3-libsss_nss_idmap-2.9.4-24.oe2403sp1.x86_64.rpm",
        "python3-sss-2.9.4-24.oe2403sp1.x86_64.rpm",
        "python3-sss-murmur-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-ad-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-client-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-common-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-common-pac-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-dbus-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-debuginfo-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-debugsource-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-idp-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-ipa-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-kcm-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-krb5-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-krb5-common-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-ldap-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-nfs-idmap-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-proxy-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-tools-2.9.4-24.oe2403sp1.x86_64.rpm",
        "sssd-winbind-idmap-2.9.4-24.oe2403sp1.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-3646.json"