CVE-2018-1000052

09.02.2018, 23:29

fmtlib version prior to version 4.1.0 (before commit 0555cea5fc0bf890afe0071a558e44625a34ba85) contains a Memory corruption (SIGSEGV), CWE-134 vulnerability in fmt::print() library function that can result in Denial of Service. This attack appear to be exploitable via Specifying an invalid format specifier in the fmt::print() function results in a SIGSEGV (memory corruption, invalid write). This vulnerability appears to have been fixed in after commit 8cf30aa2be256eba07bb1cefb998c52326e846e7.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitre	CNA	---				---
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 51%

Vendor	Product	Version
fmt	fmt	𝑥 < 4.1.0

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

fmtlib

bullseye	7.1.3+ds1-5 fixed
trixie	9.1.0+ds1-2 fixed
bookworm	9.1.0+ds1-2 fixed
sid	10.1.1+ds1-4 fixed

Ubuntu Releases

Ubuntu Product

Codename

fmtlib

noble	not-affected
mantic	not-affected
lunar	not-affected
kinetic	not-affected
jammy	not-affected
impish	not-affected
hirsute	not-affected
groovy	not-affected
focal	not-affected
eoan	not-affected
disco	not-affected
cosmic	ignored
bionic	needs-triage
artful	dne
xenial	dne
trusty	dne

Known Exploits!

Common Weakness Enumeration

CWE-134 - Use of Externally-Controlled Format String
The software uses a function that accepts a format string as an argument, but the format string originates from an external source.

References

https://github.com/fmtlib/fmt/commit/8cf30aa2be256eba07bb1cefb998c52326e846e7

https://github.com/fmtlib/fmt/issues/642

https://github.com/fmtlib/fmt/commit/8cf30aa2be256eba07bb1cefb998c52326e846e7

https://github.com/fmtlib/fmt/issues/642