#VU97218 Integer overflow in newlib - CVE-2024-30949

Vulnerability identifier: #VU97218

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2024-30949

CWE-ID: CWE-190

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
newlib
Other software / Other software solutions

Vendor: libffi

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the _gettimeofday() function. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

newlib: 3.0.0 - 4.3.0

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External links
https://inbox.sourceware.org/newlib/20231129035714.469943-1-visitorckw%40gmail.com/
https://sourceware.org/git/?p=newlib-cygwin.git%3Ba=commit%3Bh=5f15d7c5817b07a6b18cbab17342c95cb7b42be4
https://gist.github.com/visitorckw/6b26e599241ea80210ea136b28441661

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.