Improper Input Validation Affecting webkit2gtk3-jsc package, versions <0:2.28.4-1.el8


Severity

Recommended
medium

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

Exploit Maturity
Mature
EPSS
0.55% (79th percentile)

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  • Snyk IDSNYK-RHEL8-WEBKIT2GTK3JSC-3842311
  • published31 Aug 2021
  • disclosed28 Jul 2021

Introduced: 28 Jul 2021

CVE-2021-30666  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade RHEL:8 webkit2gtk3-jsc to version 0:2.28.4-1.el8 or higher.
This issue was patched in RHSA-2020:4451.

NVD Description

Note: Versions mentioned in the description apply only to the upstream webkit2gtk3-jsc package and not the webkit2gtk3-jsc package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

A buffer overflow issue was addressed with improved memory handling. This issue is fixed in iOS 12.5.3. Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..

CVSS Scores

version 3.1