Denial of service in xterm



Published: 2021-02-18
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2021-27135
CWE-ID CWE-119
Exploitation vector Network
Public exploit N/A
Vulnerable software
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xterm
Other software / Other software solutions

Vendor invisible-island.net

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Memory corruption

EUVDB-ID: #VU50810

Risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-27135

CWE-ID: CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

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

Install updates from vendor's website.

Vulnerable software versions

xterm: 317c - _nil_


CPE2.3 External links

http://www.openwall.com/lists/oss-security/2021/02/10/7
http://lists.debian.org/debian-lts-announce/2021/02/msg00019.html
http://www.openwall.com/lists/oss-security/2021/02/09/7
http://www.openwall.com/lists/oss-security/2021/02/09/9

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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