CVE-2018-1000877
high-risk
Published 2018-12-20
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.
Do I need to act?
~
1.8% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (13)
Affected Vendors
References (30)
Third Party Advisory
http://www.securityfocus.com/bid/106324
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2298
Third Party Advisory
https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
Third Party Advisory
https://github.com/libarchive/libarchive/pull/1105
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2018/12/msg00011.html
Third Party Advisory
https://usn.ubuntu.com/3859-1/
Third Party Advisory
https://www.debian.org/security/2018/dsa-4360
Third Party Advisory
http://www.securityfocus.com/bid/106324
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:2298
and 10 more references
52
/ 100
high-risk
Severity
30/34 · Critical
Exploitability
5/34 · Minimal
Exposure
17/34 · Moderate