Buffer overflow in Musl-Libc Musl
CVE-2014-3484
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.022 (81.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
- Musl-Libc Musl
- Musl Libc — versions 0.9.13 through 1.0.3, 1.1x before 1.1.2
Weakness classification (CWE)
References
- seclists.org/oss-sec/2014/q2/495 (Patch, Mailing List, Third Party Advisory)
- git.musl-libc.org/cgit/musl/commit/ (Patch)
Frequently asked questions
- What is CVE-2014-3484?
- CVE-2014-3484 is a critical-severity vulnerability in Musl-Libc Musl, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2020-02-20.
- How severe is CVE-2014-3484?
- Critical severity. CVSS v3 base score is 9.8 out of 10.