Loop with Unreachable Exit Condition ('Infinite Loop') Affecting gegl package, versions <0:0.2.0-39.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.31% (70th percentile)

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  • Snyk IDSNYK-RHEL8-GEGL-3668024
  • published26 Jul 2021
  • disclosed30 Sept 2019

Introduced: 30 Sep 2019

CVE-2019-20421  (opens in a new tab)
CWE-835  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade RHEL:8 gegl to version 0:0.2.0-39.el8 or higher.
This issue was patched in RHSA-2020:1577.

NVD Description

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

In Jp2Image::readMetadata() in jp2image.cpp in Exiv2 0.27.2, an input file can result in an infinite loop and hang, with high CPU consumption. Remote attackers could leverage this vulnerability to cause a denial of service via a crafted file.

CVSS Scores

version 3.1