CVE catalog

CVE-2026-68742

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

[CVE catalog]

Severity: Medium · CVSS 6.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H
Published: Aug 3, 2026, 7:36:56 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.13% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	sssd	sid	`2.13.1-3`	fixed
Debian	sssd	trixie	`2.10.1-2`	vulnerable
Debian	sssd	bookworm	`2.8.2-4+deb12u1`	vulnerable
Cpe	sssd	Not reported	Not reported	unknown
Cpe	openshift_container_platform	Not reported	Not reported	unknown
Cpe	enterprise_linux	Not reported	Not reported	unknown
Suse	sssd	linux enterprise server 16.0	`2.10.2-160000.5.1`	fixed
Suse	sssd	linux enterprise server for sap applications 16.0	`2.10.2-160000.5.1`	fixed
Suse	sssd	linux micro 6.2	`2.10.2-160000.5.1`	fixed
Suse	sssd	linux enterprise module for basesystem 15 sp7	`2.10.2-150700.9.40.1`	fixed
Suse	sssd	linux micro 6.1	`2.9.5-slfo.1.1_7.1`	fixed
Opensuse	sssd	leap 16.0	`2.10.2-160000.5.1`	fixed
Suse	sssd	linux micro 6.0	`2.8.2-10.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	sssd	source	sid	`2.13.1-2`	not yet assigned	Not reported	[1143600]
Debian	sssd	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1143600]
Debian	sssd	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1143600]
Suse	sssd	rpm	linux enterprise server 16.0	`2.10.2-160000.5.1`	Not reported	SUSE-SU-2026:23613-1	Not reported
Suse	sssd	rpm	linux enterprise server for sap applications 16.0	`2.10.2-160000.5.1`	Not reported	SUSE-SU-2026:23613-1	Not reported
Suse	sssd	rpm	linux micro 6.2	`2.10.2-160000.5.1`	Not reported	SUSE-SU-2026:23465-1	Not reported
Suse	sssd	rpm	linux enterprise module for basesystem 15 sp7	`2.10.2-150700.9.40.1`	Not reported	SUSE-SU-2026:3899-1	Not reported
Suse	sssd	rpm	linux micro 6.1	`2.9.5-slfo.1.1_7.1`	Not reported	SUSE-SU-2026:23347-1	Not reported
Opensuse	sssd	rpm	leap 16.0	`2.10.2-160000.5.1`	Not reported	OPENSUSE-SU-2026:21748-1	Not reported
Suse	sssd	rpm	linux micro 6.0	`2.8.2-10.1`	Not reported	SUSE-SU-2026:23251-1	Not reported

[Debian bug #1143600]

Notes

[trixie] sssd: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libipa-hbac0]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libipa-hbac-dev]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libnss-sss]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libpam-sss]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-certmap0]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-certmap-dev]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-idmap0]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-idmap-dev]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-nss-idmap0]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-nss-idmap-dev]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-simpleifp0]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-simpleifp-dev]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[libsss-sudo]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[python3-libipa-hbac]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[python3-libsss-nss-idmap]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[python3-sss]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[sssd]Affected
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[sssd-ad]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[sssd-ad-common]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
[sssd-common]Affected
Source package: [sssd]
Details (2)
- 2.8.2-4+deb12u1 · amd64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12
- 2.8.2-4+deb12u1 · arm64 · bookworm
  Affected
  nvd · sssd · debian · bookworm; nvd · sssd · debian · 12

Next results

Observed: Oct 23, 2026, 9:42:40 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]