Integer overflow in Redis - CVE-2021-32625
Published: June 1, 2021
Vulnerability identifier: #VU53726
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-32625
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow in STRALGO LCS command. A remote attacker can pass specially crafted data to the application, trigger integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Note, the vulnerability exists due to incomplete fix for #VU52828.
Affected software
Redis
Arch Linux
SUSE Linux Enterprise Module for Server Applications
Fedora
redis
redis-debuginfo
redis-debugsource
Robotic Process Automation for Cloud Pak
Arch Linux
SUSE Linux Enterprise Module for Server Applications
Fedora
redis
redis-debuginfo
redis-debugsource
Robotic Process Automation for Cloud Pak
How to mitigate CVE-2021-32625
Install updates from vendor's website.
Redis - addressed in versions 6.0.14, 6.2.4
redis - addressed in versions 6.0.14-1.fc33, 6.2.4-1.fc34
redis - update to 6.0.14-6.5.1
redis-debuginfo - update to 6.0.14-6.5.1
redis-debugsource - update to 6.0.14-6.5.1
Robotic Process Automation for Cloud Pak - addressed in versions 21.0.7.6, 23.0.7
redis - addressed in versions 6.0.14-1.fc33, 6.2.4-1.fc34
redis - update to 6.0.14-6.5.1
redis-debuginfo - update to 6.0.14-6.5.1
redis-debugsource - update to 6.0.14-6.5.1
Robotic Process Automation for Cloud Pak - addressed in versions 21.0.7.6, 23.0.7