CVE-2014-3484: Musl-Libc Musl

Critical severity, CVSS 9.8. EPSS: 2.2% chance of exploitation in the next 30 days.

Multiple stack-based buffer overflows in the __dn_expand function in network/dn_expand.c in musl libc 1.1x before 1.1.2 and 0.9.13 through 1.0.3 allow remote attackers to (1) have unspecified impact via an invalid name length in a DNS response or (2) cause a denial of service (crash) via an invalid name length in a DNS response, related to an infinite loop with no output.

Affected products

• Musl-Libc Musl: from 0.9.13, up to and including 1.0.3; from 1.1.0, before 1.1.2 (fixed in 1.1.2)

Published 2020-02-20. Last modified 2026-06-17.