Stack-based Buffer Overflow Affecting glibc package, versions <0:2.28-225.el8_8.6


Severity

Recommended
high

Based on CentOS security rating.

Threat Intelligence

EPSS
0.14% (52nd percentile)

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  • Snyk IDSNYK-CENTOS8-GLIBC-5899647
  • published13 Sept 2023
  • disclosed12 Sept 2023

Introduced: 12 Sep 2023

CVE-2023-4527  (opens in a new tab)
CWE-121  (opens in a new tab)

How to fix?

Upgrade Centos:8 glibc to version 0:2.28-225.el8_8.6 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 Centos. See How to fix? for Centos:8 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