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.

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

EPSS: 0.022 (80.7th percentile) — read the EPSS interpretation.

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.

Affected products

Musl-libc Musl
N/a Musl Libc — versions 0.9.13 through 1.0.3, 1.1x before 1.1.2

Weakness classification (CWE)

CWE-787 — Out-of-bounds Write

References

secalert@redhat.com (Patch, Mailing List, Third Party Advisory, x_refsource_MISC)
secalert@redhat.com (Patch, x_refsource_MISC)

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.