Denial of service in Redis

1) Memory leak

EUVDB-ID: #VU67749

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-2022-33105

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak within the streamGetEdgeID component. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Redis: 7.0.0

External links

http://github.com/redis/redis/pull/10829
http://github.com/redis/redis/commit/4a7a4e42db8ff757cdf3f4a824f66426036034ef
http://github.com/redis/redis/pull/10753
http://raw.githubusercontent.com/redis/redis/7.0.1/00-RELEASENOTES
http://security.netapp.com/advisory/ntap-20220729-0005/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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