CVE-2023-4527CWE-121

Glibc: stack read overflow in getaddrinfo in no-aaaa mode

Medium · published September 18, 2023

CVSS v3.1
6.5
EPSS
2%
Percentile
76.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.01669 · 76.6th percentile
Weakness
CWE-121 · Stack-based Buffer Overflow
Published
2023-09-18T16:32Z
EPSS history
Timeline
  • 18 SEP 16:32Z
    Glibc: stack read overflow in getaddrinfo in no-aaaa mode
    cvelistv5