SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2018-1000878

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is…

HIGH 8.8EPSS 4.45%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

libarchive version commit 416694915449219d505531b1096384f3237dd6cc onwards (release v3.1.0 onwards) contains a CWE-416: Use After Free vulnerability in RAR decoder - libarchive/archive_read_support_format_rar.c that can result in Crash/DoS - it is unknown if RCE is possible. This attack appear to be exploitable via the victim must open a specially crafted RAR archive.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
4.45% probability · 91th percentile
CISA KEV
Not listed
Weakness
CWE-416
Affected
libarchive/libarchive · debian/debian linux · canonical/ubuntu linux · fedoraproject/fedora · opensuse/leap · redhat/enterprise linux desktop · redhat/enterprise linux server · redhat/enterprise linux workstation
Source
cve@mitre.org

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.