Chainguard: multiple glibc-2.44 packages, multiple ld-linux-2.44 packages, multiple nscd-2.44 packages, multiple pcprofiledump-2.44 packages, multiple sln-2.44 packages, tzutils-2.44: security update to 2.44-r8

medium Tenable Self-Hosted Container Security Plugin ID 473598

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- Initializing the DNS stub resolver from an /etc/resolv.conf file, or a LOCALDOMAIN environment variable,
whose search list contains a domain of roughly 200 characters or more in the GNU C Library version 2.26 to
2.44 results in an assertion failure which aborts the process. The resolver truncates the search list when
copying it into the fixed-size _res.defdname buffer, then asserts that the copy is consistent with the
full configuration. The consistency check compared against the wrong size and did not handle a first entry
that does not fit, so a correctly truncated list failed the assertion. Any process that resolves names
through the library is affected, including long-running processes that reload /etc/resolv.conf on the next
query after it changes. Search domains are commonly written to /etc/resolv.conf from data received over
DHCP or from a VPN server, so an attacker on the local network may be able to trigger this without
privileges on the target system, subject to validation by the network configuration software.
(CVE-2026-8674)

Solution

Update the glibc-2.44 library and its related packages to version 2.44-r8 or later.

Plugin Details

Severity: Medium

ID: 473598

Version: Revision 1.2

Type: Local

Published: 10/7/2026

Updated: 10/7/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.65

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

Vector: CVSS2#AV:A/AC:H/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-8674

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

Vector: CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 9/17/2026

Reference Information

CVE: CVE-2026-8674