CVE-2023-4527
6.5
MEDIUM
CVSS 3.1
EPSS 0.11%
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.
How to fix CVE-2023-4527
To remediate CVE-2023-4527, upgrade the affected package to a fixed version below.
- Debian/glibc—upgrade to 2.36-9+deb12u3 or later
Is CVE-2023-4527 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.36-9+deb12u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H |