CVE-2018-1000880

libarchive version commit 9693801580c0cf7c70e862d305270a16b52826a7 onwards (release v3.2.0 onwards) contains a CWE-20: Improper Input Validation vulnerability in WARC parser - libarchive/archive_read_support_format_warc.c, _warc_read() that can result in DoS - quasi-infinite run time and disk usage from tiny file. This attack appear to be exploitable via the victim must open a specially crafted WARC file.

CVSS 3.1

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

EPSS

4.1% chance of exploitation in the next 30 days; higher than 90% of CVEs (scores of 2026-10-25)

CWE

CWE-119

Published

2018-12-20

Modified

2026-10-08

Record from

the NVD, synced 2026-10-19

Affected

• canonical:ubuntu_linux
• fedoraproject:fedora
• libarchive:libarchive
• opensuse:leap

References

• http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
• http://www.securityfocus.com/bid/106324
• https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909
• https://github.com/libarchive/libarchive/pull/1105
• https://github.com/libarchive/libarchive/pull/1105/commits/9c84b7426660c09c18cc349f6d70b5f8168b5680

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