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CVE-2019-1000020

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Date: February 4, 2019

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.

Language: C

Severity Score

Related Resources (16)

http://lists.opensuse.org/opensuse-security-announce/2019-04/msg00055.html
https://access.redhat.com/errata/RHSA-2019:3698
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/ZVXA7PHINVT6DFF6PRLTDTVTXKDLVHNF/
https://access.redhat.com/errata/RHSA-2019:2298
https://people.canonical.com/~ubuntu-security/cve/CVE-2019-1000020
https://github.com/libarchive/libarchive/pull/1120
https://usn.ubuntu.com/3884-1/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/CBOCC2M6YGPZA6US43YK4INPSJZZHRTG/
https://github.com/libarchive/libarchive/pull/1120/commits/8312eaa576014cd9b965012af51bc1f967b12423
https://lists.debian.org/debian-lts-announce/2019/02/msg00013.html
https://security-tracker.debian.org/tracker/CVE-2019-1000020
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00015.html
https://access.redhat.com/security/cve/CVE-2019-1000020
http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00012.html
https://nvd.nist.gov/vuln/detail/CVE-2019-1000020
https://www.mend.io/vulnerability-database/CVE-2019-1000020

Severity Score

Weakness Type (CWE)

Uncontrolled Resource Consumption ('Resource Exhaustion')

CWE-400

Loop with Unreachable Exit Condition ('Infinite Loop')

CWE-835

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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