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Debian Advisory DSA-5030-1 Critical: Webkit2gtk DoS and XSS Issues

debian
Calendar Grey December 23, 2021
Debian Logo
Important patch for webkit2gtk tackles serious vulnerabilities within Debian systems.
The following vulnerabilities have been discovered in the webkit2gtk web engine: CVE-2021-30887
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Topics Covered

security advisory debian xss dos webkit2gtk

Summary

The following vulnerabilities have been discovered in the webkit2gtk
web engine:

CVE-2021-30887

Narendra Bhati discovered that processing maliciously crafted web
content may lead to unexpectedly unenforced Content Security
Policy.

CVE-2021-30890

An anonymous researcher discovered that processing maliciously
crafted web content may lead to universal cross site scripting.

For the oldstable distribution (buster), these problems have been fixed
in version 2.34.3-1~deb10u1.

For the stable distribution (bullseye), these problems have been fixed in
version 2.34.3-1~deb11u1.

We recommend that you upgrade your webkit2gtk packages.

For the detailed security status of webkit2gtk please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/source-package/webkit2gtk

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/



Severity
critical
Lowest
Low
Medium
High
Critical

Package: webkit2gtk
CVE ID: CVE-2021-30887 CVE-2021-30890

Topics%20covered

Topics Covered

security advisory debian xss dos webkit2gtk

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