CVE-2019-18408

moderate-risk
Published 2019-10-24

archive_read_format_rar_read_data in archive_read_support_format_rar.c in libarchive before 3.4.0 has a use-after-free in a certain ARCHIVE_FAILED situation, related to Ppmd7_DecodeSymbol.

Do I need to act?

~
4.6% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.5/10 High
NETWORK / LOW complexity

Affected Products (6)

Affected Vendors

Debian Canonical Libarchive

References (30)

http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
https://access.redhat.com/errata/RHSA-2020:0203
https://access.redhat.com/errata/RHSA-2020:0246
https://access.redhat.com/errata/RHSA-2020:0271
Third Party Advisory https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14689
Patch https://github.com/libarchive/libarchive/commit/b8592ecba2f9e451e1f5cb7ab6dcee8b...
Release Notes https://github.com/libarchive/libarchive/compare/v3.3.3...v3.4.0
Mailing List https://lists.debian.org/debian-lts-announce/2019/10/msg00034.html
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro...
https://seclists.org/bugtraq/2019/Nov/2
https://security.gentoo.org/glsa/202003-28
https://support.f5.com/csp/article/K52144175?utm_source=f5support&amp%3Butm_medi...
Third Party Advisory https://usn.ubuntu.com/4169-1/
https://www.debian.org/security/2019/dsa-4557
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
https://access.redhat.com/errata/RHSA-2020:0203
https://access.redhat.com/errata/RHSA-2020:0246
https://access.redhat.com/errata/RHSA-2020:0271
and 10 more references
47
/ 100
moderate-risk
Severity 26/34 · High
Exploitability 8/34 · Low
Exposure 13/34 · Low