Out-of-bounds Read Affecting glibc package, versions <2.38-r2


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.15% (52nd percentile)

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  • Snyk IDSNYK-WOLFILATEST-GLIBC-5915781
  • published22 Sept 2023
  • disclosed18 Sept 2023

Introduced: 18 Sep 2023

CVE-2023-4527  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Wolfi glibc to version 2.38-r2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream glibc package and not the glibc package as distributed by Wolfi. See How to fix? for Wolfi relevant fixed versions and status.

A flaw was found in glibc. When the getaddrinfo function is called with the AF_UNSPEC address family and the system is configured with no-aaaa mode via /etc/resolv.conf, a DNS response via TCP larger than 2048 bytes can potentially disclose stack contents through the function returned address data, and may cause a crash.

CVSS Scores

version 3.1