Allocation of Resources Without Limits or Throttling Affecting libxml2 package, versions <0:2.9.1-6.0.1.el7.4


Severity

Recommended
0.0
medium
0
10

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
2.35% (90th percentile)

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  • Snyk IDSNYK-ORACLE7-LIBXML2-2553456
  • published10 Apr 2022
  • disclosed8 Apr 2018

Introduced: 8 Apr 2018

CVE-2017-18258  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade Oracle:7 libxml2 to version 0:2.9.1-6.0.1.el7.4 or higher.
This issue was patched in ELSA-2020-1190.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libxml2 package and not the libxml2 package as distributed by Oracle. See How to fix? for Oracle:7 relevant fixed versions and status.

The xz_head function in xzlib.c in libxml2 before 2.9.6 allows remote attackers to cause a denial of service (memory consumption) via a crafted LZMA file, because the decoder functionality does not restrict memory usage to what is required for a legitimate file.