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- ------------------------------------------------------------------------- Debian Security Advisory DSA-4877-1 security@debian.org https://www.debian.org/security/ Alberto Garcia
March 27, 2021 https://www.debian.org/security/faq
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Package : webkit2gtk
CVE ID : CVE-2020-27918 CVE-2020-29623 CVE-2021-1765 CVE-2021-1789
CVE-2021-1799 CVE-2021-1801 CVE-2021-1870

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

CVE-2020-27918

Liu Long discovered that processing maliciously crafted web
content may lead to arbitrary code execution.

CVE-2020-29623

Simon Hunt discovered that users may be unable to fully delete
their browsing history under some circumstances.

CVE-2021-1765

Eliya Stein discovered that maliciously crafted web content may
violate iframe sandboxing policy.

CVE-2021-1789

@S0rryMybad discovered that processing maliciously crafted web
content may lead to arbitrary code execution.

CVE-2021-1799

Gregory Vishnepolsky, Ben Seri and Samy Kamkar discovered that a
malicious website may be able to access restricted ports on
arbitrary servers.

CVE-2021-1801

Eliya Stein discovered that processing maliciously crafted web
content may lead to arbitrary code execution.

CVE-2021-1870

An anonymous researcher discovered that processing maliciously
crafted web content may lead to arbitrary code execution.

For the stable distribution (buster), these problems have been fixed in
version 2.30.6-1~deb10u1.

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/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/

Mailing list: debian-security-announce@lists.debian.org
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