9.8

CVE-2014-3484: musl-libc musl Out-of-bounds Write

CVSS: 9.8v3.1CriticalModified
AliasesMGASA-2014-0262UBUNTU-CVE-2014-3484DEBIAN-CVE-2014-3484
Published 20-02-2020Last modified 06-08-2024
Open JSON

Vulnerability summary

CVE-2014-3484 is a critical (CVSS 9.8) Out-of-bounds Write vulnerability in musl-libc musl. EPSS estimates a 2.20% chance of exploitation in the next 30 days, higher than 82.3% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (NVD)
EPSS score
2.20%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
USN-4768-1

Timeline

  1. 20-02-2020
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 3 sources · 2 versions

EPSS trend

Probability

2.20%

Chance of exploitation in the next 30 days

Percentile

82%

Versus all other CVEs

30-day change

0.00 pp

From 2.20% on 21-09-2026

21-09-202621-10-2026
EPSS score
2.20%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • musl< 1.1.4-1
Mageia1 product
  • musl< 0.9.14-2.1.mga4
Musl-libc1 product
  • musl≥ 0.9.13, ≤ 1.0.3 | ≥ 1.1.0, < 1.1.2
Ubuntu1 product
  • musl< 0.9.15-1ubuntu0.1~esm1

4 vendors · 4 products

References

9 links