Vulnerability identifier: #VU64897

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-23596

CWE-ID: CWE-835

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
junrar
Universal components / Libraries / Libraries used by multiple products

Vendor: junrar

Description

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

The vulnerability exists due to infinite loop when processing corrupted RAR archives. A remote attacker can send a specially crafted RAR archive and cause denial of service conditions.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

junrar: 0.6 - 7.4.0

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External links
http://github.com/junrar/junrar/issues/73
http://github.com/junrar/junrar/security/advisories/GHSA-m6cj-93v6-cvr5
http://github.com/junrar/junrar/commit/7b16b3d90b91445fd6af0adfed22c07413d4fab7

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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.