CVE-2019-18408 Information

Description

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.

CVSS Vector

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

Reference

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 https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=14689 https://github.com/libarchive/libarchive/commit/b8592ecba2f9e451e1f5cb7ab6dcee8b8e7b3f60 https://github.com/libarchive/libarchive/compare/v3.3.3…v3.4.0 https://lists.debian.org/debian-lts-announce/2019/10/msg00034.html https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6LZ4VJGTCYEJSDLOEWUUFG6TM4SUPFSY/ https://seclists.org/bugtraq/2019/Nov/2 https://security.gentoo.org/glsa/202003-28 https://support.f5.com/csp/article/K52144175?utm_source=f5support&utm_medium=RSS https://usn.ubuntu.com/4169-1/ https://www.debian.org/security/2019/dsa-4557

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5