Gentoo update for libuv

1) Out-of-bounds read

EUVDB-ID: #VU54624

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-22918

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in uv__idna_toascii() function in libuv, which is used to convert strings to ASCII. A remote attacker can force the application to resolve a specially crafted hostname, trigger an out-of-bounds read error and gain access to sensitive information or perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
dev-libs/libuv to version: 1.41.1

Vulnerable software versions

Gentoo Linux: All versions

dev-libs/libuv: before 1.41.1

CPE2.3

• cpe:2.3:o:gentoo:gentoo_linux:*:*:*:*:*:*:*:*
• cpe:2.3:o:gentoo:dev-libs_libuv:*:*:*:*:*:gentoo_linux:*:*

External links

https://security.gentoo.org/glsa/202401-23

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.