{"id":"CVE-2018-1000880","title":"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() t…","summary":"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() t…","severity":"medium","cvss":6.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","cwe":["CWE-119","CWE-20"],"vendor":"libarchive","product":"libarchive","affected":["libarchive >= 3.2.0, < 3.4.0","ubuntu_linux = 14.04","ubuntu_linux = 16.04","ubuntu_linux = 18.04","ubuntu_linux = 18.10","fedora = 29","fedora = 30","leap = 15.0"],"patched":["libarchive 3.4.0"],"published":"2018-12-20","updated":"2026-10-08","sourceUpdated":"2026-10-08T21:17:07.197","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000880","references":[{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html","label":"cve@mitre.org"},{"url":"http://www.securityfocus.com/bid/106324","label":"cve@mitre.org"},{"url":"https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909","label":"cve@mitre.org"},{"url":"https://github.com/libarchive/libarchive/pull/1105","label":"cve@mitre.org"},{"url":"https://github.com/libarchive/libarchive/pull/1105/commits/9c84b7426660c09c18cc349f6d70b5f8168b5680","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/","label":"cve@mitre.org"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/","label":"cve@mitre.org"},{"url":"https://usn.ubuntu.com/3859-1/","label":"cve@mitre.org"},{"url":"https://www.debian.org/security/2018/dsa-4360","label":"cve@mitre.org"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/106324","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.launchpad.net/ubuntu/+source/libarchive/+bug/1794909","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/libarchive/libarchive/pull/1105","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/libarchive/libarchive/pull/1105/commits/9c84b7426660c09c18cc349f6d70b5f8168b5680","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/W645KCLWFDBDGFJHG57WOVXGE62QSIJI/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://usn.ubuntu.com/3859-1/","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2018/dsa-4360","label":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-1000880.json"},{"url":"https://access.redhat.com/security/cve/CVE-2018-1000880"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=1663892"},{"url":"https://www.cve.org/CVERecord?id=CVE-2018-1000880"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-1000880"}],"tags":["nvd","csaf","vex","red-hat","score-dispute"],"epss":0.04056,"epssPercentile":0.90389,"ingestedAt":"2026-10-08T22:11:53.695Z","scores":{"nvd":6.5,"vendor":4.3},"slug":"CVE-2018-1000880","body":"## Overview\n\nlibarchive 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.\n\n## Affected\n\n- `libarchive >= 3.2.0, < 3.4.0`\n- `ubuntu_linux = 14.04`\n- `ubuntu_linux = 16.04`\n- `ubuntu_linux = 18.04`\n- `ubuntu_linux = 18.10`\n- `fedora = 29`\n- `fedora = 30`\n- `leap = 15.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `libarchive 3.4.0`\n\n## Vendor advisories\n\n- **Red Hat VEX** · Low · affected: Red Hat Enterprise Linux 8 · no fix planned: Red Hat Enterprise Linux 8 · updated 2026-10-08 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2018/cve-2018-1000880.json)","depth":"sunlit","depthScore":37,"depthScoreParts":{"impact":35.8,"likelihood":0.8,"exploitation":0,"ransomware":0},"changes":[]}