CVE-2018-1000877

High

Description

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-415: Double Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c, parse_codes(), realloc(rar->lzss.window, new_size) with new_size = 0 that can result in Crash/DoS. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

SeverityHigh
CVSS8.8
Exploit probability—
ProductLibarchive
PublishedDec 20, 2018
First seenDec 20, 2018

How to fix

Affected products

ProductAffected versionsFixed in
libarchive libarchive3.1.0 ≤ v < 3.4.03.4.0
debian debian_linux8.0, 9.0—
canonical ubuntu_linux14.04, 16.04, 18.04, 18.10—
fedoraproject fedora28, 29, 30—
redhat enterprise_linux_desktop7.0—
redhat enterprise_linux_server7.0—
redhat enterprise_linux_workstation7.0—

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