Input validation error in libarchive - CVE-2016-4809
Published: September 21, 2016 / Updated: July 28, 2020
Vulnerability identifier: #VU32265
CSH Severity: Medium
CVSS v4.0: 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/E:U/U:Green
CVE-ID: CVE-2016-4809
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: libarchive
Affected software:
libarchive
libarchive
Detailed vulnerability description
The vulnerability allows a remote non-authenticated attacker to perform a denial of service (DoS) attack.
The archive_read_format_cpio_read_header function in archive_read_support_format_cpio.c in libarchive before 3.2.1 allows remote attackers to cause a denial of service (application crash) via a CPIO archive with a large symlink.
How to mitigate CVE-2016-4809
Install update from vendor's website.
Sources
- http://rhn.redhat.com/errata/RHSA-2016-1844.html
- http://rhn.redhat.com/errata/RHSA-2016-1850.html
- http://www.debian.org/security/2016/dsa-3657
- http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
- http://www.securityfocus.com/bid/91813
- https://bugzilla.redhat.com/show_bug.cgi?id=1347084
- https://github.com/libarchive/libarchive/commit/fd7e0c02
- https://github.com/libarchive/libarchive/issues/705
- https://security.gentoo.org/glsa/201701-03