CVE-2014-3484

Name: CVE-2014-3484
Creator: NVD / NIST
Published: 2020-02-20T04:15:10.82+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 9.8/10EPSS 2.15%

Last modified Jun 17, 2026

CVE-2014-3484 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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.. EPSS estimates a 2.15% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability

2.15%

79.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Musl-Libc	Musl	>= 0.9.13, <= 1.0.3
Musl-Libc	Musl	>= 1.1.0, < 1.1.2

References

http://git.musl-libc.org/cgit/musl/commit/?id=b3d9e0b94ea73c68ef4169ec82c898ce59a4e30aPatch
http://seclists.org/oss-sec/2014/q2/495Mailing List, Patch, Third Party Advisory
http://git.musl-libc.org/cgit/musl/commit/?id=b3d9e0b94ea73c68ef4169ec82c898ce59a4e30aPatch
http://seclists.org/oss-sec/2014/q2/495Mailing List, Patch, Third Party Advisory

Timeline

Published: Feb 20, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2014-3484?

How severe is CVE-2014-3484?

CVE-2014-3484 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 2.15% probability of exploitation in the next 30 days.

How do I fix CVE-2014-3484?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2014-3484?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST