VULNERABILITY INTELLIGENCE

CVE-2023-4527

CVSS score6.5 MEDIUM
EPSS probability1.67%
CISA KEVNot currently listed
Published2023-09-18
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H

Description

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.

Weakness classification

  • secalert@redhat.com: CWE-121
  • nvd@nist.gov: CWE-125

Primary references