CVE-2019-20509

libarchive: heap-based buffer overflow in archive_read_support_format_lha.c due to insufficient validation of UTF-16 input

Loading…

Severity

Moderate

Red Hat Product Security

6.5

CVSS 3.1

Review impact separately from score.

Published · November 26, 2019

Updated · June 27, 2026

Description

[REJECTED CVE] A vulnerability has been identified in Libarchive in archive_read_support_format_lha.c file. It does not ensure valid sizes for UTF-16 input, which allows remote attackers to cause a denial of service (heap-based buffer over-read and application crash) via a crafted LHA archive.

Statement

This CVE has been rejected by Upstream, because the vulnerability was introduced and fixed in the same version, so there is actually no released version with the vulnerable code: https://github.com/libarchive/libarchive/issues/1284#issuecomment-598381071

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 6.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

CWE-125 · Out-of-bounds Read