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DebianDEBIAN:DSA-4923-1:EA1C3
HistoryMay 30, 2021 - 3:49 p.m.

[SECURITY] [DSA 4923-1] webkit2gtk security update

2021-05-3015:49:51
lists.debian.org
93

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.009 Low

EPSS

Percentile

81.9%


Debian Security Advisory DSA-4923-1 security@debian.org
https://www.debian.org/security/ Alberto Garcia
May 30, 2021 https://www.debian.org/security/faq


Package : webkit2gtk
CVE ID : CVE-2021-1788 CVE-2021-1844 CVE-2021-1871

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

CVE-2021-1788

Francisco Alonso discovered that processing maliciously crafted
web content may lead to arbitrary code execution.

CVE-2021-1844

Clement Lecigne and Alison Huffman discovered that processing
maliciously crafted web content may lead to arbitrary code
execution.

CVE-2021-1871

An anonymous researcher discovered that a remote attacker may be
able to cause arbitrary code execution.

For the stable distribution (buster), these problems have been fixed in
version 2.32.1-1~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

How to protect your server from attacks?

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:P/I:P/A:P

0.009 Low

EPSS

Percentile

81.9%

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