Improper input validation in libarchive - CVE-2018-1000880

 

Improper input validation in libarchive - CVE-2018-1000880

Published: December 27, 2018


Vulnerability identifier: #VU16729
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-1000880
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to cause DoS condition.

The vulnerability exists due to insufficient validation of user-supplied input in WARC parser - libarchive/archive_read_support_format_warc.c, _warc_read() that can result in DoS - quasi-infinite run time and disk usage from tiny file. A remote attacker can trick the victim into opening a specially crafted RAR archive and cause the service to crash.


Affected software

libarchive
Arch Linux
Debian Linux
Opensuse
Fedora
Traffix SDC
BIG-IP
libarchive

How to mitigate CVE-2018-1000880

Install update from vendor's website.

libarchive - addressed in versions 3.3.3-6.fc28, 3.3.3-6.fc29, 3.3.3-6.fc30

External References

Related Security Bulletins