Out-of-bounds read in libarchive - CVE-2017-14503

 

Out-of-bounds read in libarchive - CVE-2017-14503

Published: November 19, 2018 / Updated: November 22, 2018


Vulnerability identifier: #VU15955
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2017-14503
CWE-ID: CWE-125
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 vulnerability exists due to out-of-bounds read within lha_read_data_none() in archive_read_support_format_lha.c when extracting a specially crafted lha archive. A remote attacker can trigger an out-of-bounds read, related to lha_crc16 and cause the service to crash.

Affected software

libarchive
Debian Linux
Gentoo Linux
Amazon Linux AMI
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux for x86_64
Opensuse
Fedora
libarchive (Alpine package)
libarchive
Data Computing Appliance (DCA)

How to mitigate CVE-2017-14503

Install updates from vendor's website.

libarchive (Alpine package) - update to 3.3.3-r0
libarchive - addressed in versions 3.3.3-1.fc28, 3.3.3-1.fc29
Data Computing Appliance (DCA) - update to 4.3.0.0

External References

Related Security Bulletins