CVE-2015-8931

Severity: high (CVSS 7.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2016-09-20 · updated 2026-06-17
Weakness: CWE-190

Description

Multiple integer overflows in the (1) get_time_t_max and (2) get_time_t_min functions in archive_read_support_format_mtree.c in libarchive before 3.2.0 allow remote attackers to have unspecified impact via a crafted mtree file, which triggers undefined behavior.

Affected products

Canonical Ubuntu Linux: 12.04, 14.04, 15.10, 16.04
Debian Linux: 7.0, 8.0
libarchive: through 3.1.901a
SUSE Linux Enterprise Server 15 SP1: 12-sp1
SUSE Linux Enterprise Server: 12-sp1
SUSE Linux Enterprise Software Development Kit: 12-sp1

References

http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html
http://rhn.redhat.com/errata/RHSA-2016-1844.html
http://www.debian.org/security/2016/dsa-3657
http://www.openwall.com/lists/oss-security/2016/06/17/2
http://www.openwall.com/lists/oss-security/2016/06/17/5
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.securityfocus.com/bid/91338
http://www.ubuntu.com/usn/USN-3033-1
https://blog.fuzzing-project.org/47-Many-invalid-memory-access-issues-in-libarchive.html
https://github.com/libarchive/libarchive/issues/539
https://security-tracker.debian.org/tracker/CVE-2015-8931
https://security.gentoo.org/glsa/201701-03

Get alerted when CVE-2015-8931 or the next vulnerability affects your stack