Gentoo update for less



Published: 2023-10-10
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2022-46663
CWE-ID CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Gentoo Linux
Operating systems & Components / Operating system

sys-apps/less
Operating systems & Components / Operating system package or component

Vendor Gentoo

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Input validation error

EUVDB-ID: #VU72127

Risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-46663

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to insufficient validation of the ANSI escape sequences in the "less -R" output. A remote attacker can trick the victim to run the command against the specially crafted data and perform a denial of service (DoS) attack.

Mitigation

Update the affected packages.
sys-apps/less to version: 608-r2

Vulnerable software versions

Gentoo Linux: All versions

sys-apps/less: before 608-r2

External links

http://security.gentoo.org/glsa/202310-11


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.



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