#VU67640 Integer overflow in Redis - CVE-2022-35951

Vulnerability identifier: #VU67640

Vulnerability risk: Low

CVSSv4.0: 4.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-35951

CWE-ID: CWE-190

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Redis
Server applications / Database software

Vendor: Salvatore Sanfilippo

Description

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow when executing a XAUTOCLAIM command on a stream key in a specific state. A local user can use a specially-crafted COUNT argument, trigger integer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Redis: 7.0 rc1 - 7.0.4

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External links
https://github.com/redis/redis/security/advisories/GHSA-5gc4-76rx-22c9
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/A7INCOOFPPEAKNDBZU3TIZJPYXBULI2C/

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.