PT-2015-7843 · Libarchive+5 · Libarchive+5

Hannob · Published 2015-12-31 · Updated 2018-01-05 · CVE-2015-8932

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions libarchive versions prior to 3.2.0

Description The issue allows remote attackers to cause a denial of service, resulting in a crash, by utilizing a crafted tar file. This crafted file triggers an invalid left shift in the compress bidder init function located in archive read support filter compress.c.

Recommendations For versions prior to 3.2.0, update to version 3.2.0 or later to resolve the issue. As a temporary workaround, consider restricting the use of the compress bidder init function until a patch is available. Avoid processing untrusted or crafted tar files with the affected libarchive versions to minimize the risk of exploitation.

Exploit

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2016-1654

CESA-2016_1844

CESA-2016_1850

CVE-2015-8932

DLA-554-1

DSA-3657-1

OPENSUSE-SU-2016_2036-1

RHSA-2016:1844

RHSA-2016:1850

RHSA-2016_1844

RHSA-2016_1850

SUSE-SU-2016:1909-1

USN-3033-1

Affected Products

Alt Linux

Centos

Red Hat

Suse

Ubuntu

Libarchive

References · 85

• 🔥 https://github.com/libarchive/libarchive/issues/547 · Exploit
• http://rhn.redhat.com/errata/RHSA-2016-1850.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8920 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-8932 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8925 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8928 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2016-1844.html · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8924 · Vendor Advisory
• http://ubuntu.com/usn/USN-3033-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8921 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8922 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2016:1909-1 · Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00025.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2015-8932 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8932 · Vendor Advisory