PT-2020-10485 · Libarchive · Libarchive

Published 2020-03-10 · Updated 2020-06-10 · CVE-2019-20509

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 3.4.1

Description The issue allows remote attackers to cause a denial of service, resulting in a heap-based buffer over-read and application crash, via a crafted LHA archive. This is due to the failure to ensure valid sizes for UTF-16 input in the archive read support format lha.c file.

Recommendations For versions prior to 3.4.1, update to version 3.4.1 or later to resolve the issue. As a temporary workaround, consider restricting the handling of LHA archives to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2019-20509

MGASA-2020-0253

Affected Products

Libarchive

References · 13

• https://lists.fedoraproject.org/archives/list/[e-mail]/thread/6OTE7GWASH2ZOVG5H3HEN5PR6B3KF7JB · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2019-20509 · Security Note
• https://ubuntu.com/security/CVE-2019-20509 · Vendor Advisory
• https://advisories.mageia.org/MGASA-2020-0253.html · Security Note
• https://osv.dev/vulnerability/MGASA-2020-0253 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2019-20509 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2019-20509 · Vendor Advisory
• https://github.com/libarchive/libarchive/compare/v3.4.0...v3.4.1 · Note
• https://github.com/libarchive/libarchive/releases/tag/v3.4.2 · Note
• https://github.com/libarchive/libarchive/releases/tag/v3.4.3 · Note
• https://github.com/libarchive/libarchive/releases/tag/v3.4.1 · Note
• https://t.me/cvenotify/1452 · Telegram Post
• https://bugs.mageia.org/show_bug.cgi?id=26691 · Note