CVE-2019-1000020
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in, but needs a user to act. High risk of service disruption.
- Exploit odds
- 3.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 3.2% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 3.2% · EPSS, next 30 days
- Weakness
- CWE-835
- Record status
- Modified
Affected
- Libarchive < 3.4.0
- Canonical Ubuntu Linux 14.04
- Canonical Ubuntu Linux 16.04
- Canonical Ubuntu Linux 18.04
- Canonical Ubuntu Linux 18.10
- Debian Linux 8.0
- Fedoraproject Fedora 29
- Opensuse Leap 15.0
Attack profile CVSS 3.1 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2019-1000020.md and follow it. Check whether this project is affected by CVE-2019-1000020. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/libarchive/libarchive/pull/1120
- https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423
- https://github.com/libarchive/libarchive/pull/1120
- https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423
References
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
- 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-2019:2298
- https://access.redhat.com/errata/RHSA-2019:3698
- https://github.com/libarchive/libarchive/pull/1120
- https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423
- https://lists.debian.org/debian-lts-announce/2019/02/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
- https://usn.ubuntu.com/3884-1/
- http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
- 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-2019:2298
- https://access.redhat.com/errata/RHSA-2019:3698
- https://github.com/libarchive/libarchive/pull/1120
- https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423
- https://lists.debian.org/debian-lts-announce/2019/02/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
- https://usn.ubuntu.com/3884-1/