PT-2015-7836 · Libarchive+5 · Libarchive+5

Hanno Böck · Published 2015-12-31 · Updated 2023-09-12 · CVE-2015-8923

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:N/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 is related to the process extra function in libarchive, which can be exploited by remote attackers to cause a denial of service (crash) via a crafted zip file. This is due to the function's use of the size field and a signed number in an offset.

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 handling of zip files from untrusted sources until the update is applied.

Fix

DoS

RCE

Weakness Enumeration

CWE-20

Related Identifiers

ALT-PU-2016-1654

CESA-2016_1844

CVE-2015-8923

DLA-554-1

DSA-3657-1

OPENSUSE-SU-2016_2036-1

RHSA-2016:1844

RHSA-2016_1844

SUSE-SU-2016:1909-1

USN-3033-1

Affected Products

Alt Linux

Centos

Red Hat

Suse

Ubuntu

Libarchive

References · 83

• https://ubuntu.com/security/CVE-2015-8920 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8925 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8928 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8924 · Vendor Advisory
• https://linux.oracle.com/errata/ELSA-2016-1844.html · 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://nvd.nist.gov/vuln/detail/CVE-2015-8923 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-8923 · 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://ubuntu.com/security/CVE-2015-8917 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8932 · Vendor Advisory
• https://ubuntu.com/security/CVE-2015-8919 · Vendor Advisory