Out-of-bounds read in ClamAV - CVE-2020-3327

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Main Vulnerability Database Vulnerabilities #VU27928

Out-of-bounds read in ClamAV - CVE-2020-3327

Published: May 15, 2020


Vulnerability identifier: #VU27928
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3327
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

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

The vulnerability exists due to a boundary condition when processing ARJ archives. A remote attacker can pass specially crafted ARJ archive to the application, trigger out-of-bounds read error and crash the service.


Affected software

ClamAV
Amazon Linux AMI
Gentoo Linux
Fedora
Ubuntu
busybox (Alpine package)
clamav (Ubuntu package)
clamav (Alpine package)
firefox-esr (Alpine package)
clamav
RSA Authentication Manager

How to mitigate CVE-2020-3327

Install updates from vendor's website.

ClamAV - update to 0.102.3
clamav (Ubuntu package) - addressed in versions 0.102.3+dfsg-0ubuntu0.12.04.1, 0.102.3+dfsg-0ubuntu0.14.04.1+esm1, 0.102.3+dfsg-0ubuntu0.16.04.1, 0.102.3+dfsg-0ubuntu0.18.04.1, 0.102.3+dfsg-0ubuntu0.19.10.1, 0.102.3+dfsg-0ubuntu0.20.04.1, 0.102.4+dfsg-0ubuntu0.12.04.1, 0.102.4+dfsg-0ubuntu0.14.04.1+esm1, 0.102.4+dfsg-0ubuntu0.16.04.1, 0.102.4+dfsg-0ubuntu0.18.04.1, 0.102.4+dfsg-0ubuntu0.20.04.1
clamav (Alpine package) - update to 0.102.3-r0
clamav - addressed in versions 0.102.3-1.el7, 0.102.3-1.el8, 0.102.3-1.fc30, 0.102.3-1.fc31, 0.102.3-1.fc32, 0.102.4-1.el7, 0.102.4-1.el8, 0.102.4-1.fc31, 0.102.4-1.fc32
RSA Authentication Manager - update to 8.5 Patch 3

External References

Related Security Bulletins