Gentoo update for xterm

Published: 2022-08-14

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-27135 CVE-2022-24130
CWE-ID	CWE-119
Exploitation vector	Network
Public exploit	N/A
Vulnerable software	Gentoo Linux Operating systems & Components / Operating system x11-terms/xterm Operating systems & Components / Operating system package or component
Vendor	Gentoo

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Memory corruption

EUVDB-ID: #VU50810

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-27135

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when processing UTF-8 character sequences. A remote attacker can pass specially crafted data to the application, trigger memory corruption and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
x11-terms/xterm to version: 371

Vulnerable software versions

Gentoo Linux: All versions

x11-terms/xterm: before 371

CPE2.3

External links

https://security.gentoo.org/glsa/202208-22

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.

2) Buffer overflow

EUVDB-ID: #VU69241

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2022-24130