Heap-based buffer overflow in ClamAV - CVE-2022-20792

Vulnerability identifier: #VU62803

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-2022-20792

CWE-ID: CWE-122

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the signature database load module. A remote attacker can pass specially crafted data to the application, trigger heap-based buffer overflow and execute arbitrary code on the target system.

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

ClamAV
Gentoo Linux
SUSE Manager Server
SUSE Manager Proxy
SUSE Linux Enterprise Server
Ubuntu
SUSE Linux Enterprise Module for Basesystem
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Desktop
SUSE Linux Enterprise High Performance Computing
openSUSE Leap
openEuler
clamav (Ubuntu package)
clamav-filesystem
clamav-data
clamd
clamav-update
clamav-milter
clamav-help
clamav-devel
clamav-debugsource
clamav-debuginfo
clamav
libfreshclam2-debuginfo
libfreshclam2
libclamav9-debuginfo
libclamav9
app-antivirus/clamav

Install updates from vendor's website.

ClamAV - addressed in versions 0.103.6, 0.104.3
clamav (Ubuntu package) - addressed in versions 0.103.6+dfsg0ubuntu0.16.04.1+esm1, 0.103.6+dfsg-0ubuntu0.18.04.1, 0.103.6+dfsg-0ubuntu0.20.04.1, 0.103.6+dfsg-0ubuntu0.21.10.1, 0.103.6+dfsg-0ubuntu0.22.04.1
clamav-filesystem - update to 0.103.6-3
clamav-data - update to 0.103.6-3
clamd - update to 0.103.6-3
clamav-update - update to 0.103.6-3
clamav-milter - update to 0.103.6-3
clamav-help - update to 0.103.6-3
clamav-devel - update to 0.103.6-3
clamav-debugsource - update to 0.103.6-3
clamav-debuginfo - update to 0.103.6-3
clamav - update to 0.103.6-3
clamav-debugsource - addressed in versions 0.103.6-3.18.1, 0.103.6-150000.3.38.1
clamav-debuginfo - addressed in versions 0.103.6-3.18.1, 0.103.6-150000.3.38.1
clamav - addressed in versions 0.103.6-3.18.1, 0.103.6-150000.3.38.1
libfreshclam2-debuginfo - update to 0.103.6-150000.3.38.1
libfreshclam2 - update to 0.103.6-150000.3.38.1
libclamav9-debuginfo - update to 0.103.6-150000.3.38.1
libclamav9 - update to 0.103.6-150000.3.38.1
clamav-devel - update to 0.103.6-150000.3.38.1
app-antivirus/clamav - update to 0.103.7

• https://blog.clamav.net/2022/05/clamav-01050-01043-01036-released.html

• Multiple vulnerabilities in ClamAV
• Ubuntu update for clamav
• Ubuntu update for clamav
• SUSE update for clamav
• SUSE update for clamav
• Gentoo update for ClamAV
• openEuler update for clamav