Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Libarchive | Libarchive | >= 2.8.0, < 3.4.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Debian | Debian Linux | 8.0 |
| Fedoraproject | Fedora | 29 |
| Opensuse | Leap | 15.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
- https://access.redhat.com/errata/RHSA-2019:2298Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:3698
- https://github.com/libarchive/libarchive/pull/1120Third Party Advisory
- https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b9650PatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/02/msg00013.htmlThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://usn.ubuntu.com/3884-1/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.htmlMailing ListThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
- https://access.redhat.com/errata/RHSA-2019:2298Third Party Advisory
FAQ
What is CVE-2019-1000020?
CVE-2019-1000020 is a vulnerability with a CVSS score of 6.5 (MEDIUM). libarchive version commit 5a98dcf8a86364b3c2c469c85b93647dfb139961 onwards (version v2.8.0 onwards) contains a CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in ISO9660 ...
How severe is CVE-2019-1000020?
CVE-2019-1000020 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-1000020?
Check the references section above for vendor advisories and patch information. Affected products include: Libarchive Libarchive, Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Opensuse Leap.