CVE-2018-1000879

medium

Description

libarchive version commit 379867ecb330b3a952fb7bfa7bffb7bbd5547205 onwards (release v3.3.0 onwards) contains a CWE-476: NULL Pointer Dereference vulnerability in ACL parser - libarchive/archive_acl.c, archive_acl_from_text_l() that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted archive file.

References

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html

http://www.securityfocus.com/bid/106324

https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909

https://github.com/libarchive/libarchive/pull/1105

https://github.com/libarchive/libarchive/pull/1105/commits/15bf44fd2c1ad0e3fd87048b3fcc90c4dcff1175

https://lists.fedoraproject.org/archives/list/[email protected]/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/

https://lists.fedoraproject.org/archives/list/[email protected]/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/

https://lists.fedoraproject.org/archives/list/[email protected]/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/

Details

Source: MITRE

Published: 2018-12-20

Updated: 2019-11-06

Type: CWE-476

Risk Information

CVSS v2

Base Score: 4.3

Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 6.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Impact Score: 3.6

Exploitability Score: 2.8

Severity: MEDIUM