Buffer over-read in ClamAV - CVE-2017-12378

 

Buffer over-read in ClamAV - CVE-2017-12378

Published: January 29, 2018


Vulnerability identifier: #VU10316
CSH Severity: Low
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-2017-12378
CWE-ID: CWE-126
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to input validation checking mechanisms of .tar (Tape Archive) files. A remote attacker can send a specially crafted input, trigger checksum buffer over-read condition and cause the service to crash.

Affected software

ClamAV
Gentoo Linux
Arch Linux
Amazon Linux AMI
Fedora
SUSE Linux
Ubuntu
Opensuse
clamav (Alpine package)
clamav

How to mitigate CVE-2017-12378

Update to version 0.99.3.

clamav (Alpine package) - update to 0.100.1-r0
clamav - addressed in versions 0.99.3-1.el7, 0.99.3-1.fc26, 0.99.3-1.fc27, 0.99.3-8.el6

External References

Related Security Bulletins