Vulnerability Details : CVE-2019-1000020
libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660 parser, archive_read_support_format_iso9660.c, read_CE()/parse_rockridge() that can result in DoS by infinite loop. This attack appears to be exploitable via the victim opening a specially crafted ISO9660 file.
Vulnerability category: Denial of service
Products affected by CVE-2019-1000020
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:29:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*
- cpe:2.3:a:libarchive:libarchive:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-1000020
1.65%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 87 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-1000020
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2019-1000020
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-1000020
-
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
[security-announce] openSUSE-SU-2019:2632-1: moderate: Security update f
-
https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423
Fix a 7zip crash and a ISO9660 infinite loop by daxtens · Pull Request #1120 · libarchive/libarchive · GitHubPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2019/02/msg00013.html
[SECURITY] [DLA 1668-1] libarchive security updateThird Party Advisory
-
https://github.com/libarchive/libarchive/pull/1120
Fix a 7zip crash and a ISO9660 infinite loop by daxtens · Pull Request #1120 · libarchive/libarchive · GitHubThird Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:3698
RHSA-2019:3698 - Security Advisory - Red Hat Customer Portal
-
https://usn.ubuntu.com/3884-1/
USN-3884-1: libarchive vulnerabilities | Ubuntu security noticesThird Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
[security-announce] openSUSE-SU-2019:2615-1: moderate: Security update f
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
[SECURITY] Fedora 28 Update: libarchive-3.3.3-6.fc28 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
[SECURITY] Fedora 29 Update: libarchive-3.3.3-6.fc29 - package-announce - Fedora Mailing-ListsMailing List;Release Notes;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
[security-announce] openSUSE-SU-2019:1196-1: moderate: Security update fMailing List;Third Party Advisory
-
https://access.redhat.com/errata/RHSA-2019:2298
RHSA-2019:2298 - Security Advisory - Red Hat Customer PortalThird Party Advisory
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