VulnerabilityAnalyzed

CVE-2024-30949

An issue in newlib v.4.3.0 allows an attacker to execute arbitrary code via the time unit scaling in the _gettimeofday function.

CRITICAL 9.8EPSS 0.76%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.76%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

An issue in newlib v.4.3.0 allows an attacker to execute arbitrary code via the time unit scaling in the _gettimeofday function.

CVSS 3.1: 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.76% probability · 53th percentile
CISA KEV: Not listed
Weakness: CWE-190, CWE-787
Affected: newlib project/newlib
Source: cve@mitre.org

References

https://gist.github.com/visitorckw/6b26e599241ea80210ea136b28441661Patch
https://inbox.sourceware.org/newlib/20231129035714.469943-1-visitorckw%40gmail.com/Mailing List, Patch
https://sourceware.org/git/?p=newlib-cygwin.git%3Ba=commit%3Bh=5f15d7c5817b07a6b18cbab17342c95cb7b42be4Broken Link

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.