CVE-2019-19221 Information

Description

In Libarchive 3.4.0 archive_wstring_append_from_mbs in archive_string.c has an out-of-bounds read because of an incorrect mbrtowc or mbtowc call. For example bsdtar crashes via a crafted archive.

CVSS Vector

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

Reference

https://github.com/libarchive/libarchive/commit/22b1db9d46654afc6f0c28f90af8cdc84a199f41 https://github.com/libarchive/libarchive/issues/1276 https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RHFV25AVTASTWZRF3KTSL357AQ6TYHM4/ https://usn.ubuntu.com/4293-1/

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5