Loop with Unreachable Exit Condition ('Infinite Loop') Affecting libarchive package, versions <0:3.3.2-7.el8


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
1.65% (88th percentile)

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  • Snyk IDSNYK-RHEL8-LIBARCHIVE-3617187
  • published26 Jul 2021
  • disclosed20 Jan 2019

Introduced: 20 Jan 2019

CVE-2019-1000020  (opens in a new tab)
CWE-835  (opens in a new tab)

How to fix?

Upgrade RHEL:8 libarchive to version 0:3.3.2-7.el8 or higher.
This issue was patched in RHSA-2019:3698.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libarchive package and not the libarchive package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

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 Scores

version 3.1