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HistoryMay 10, 2021 - 12:31 p.m.

[SECURITY] [DLA 2653-1] libxml2 security update

2021-05-1012:31:54
lists.debian.org
82

CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.7

Confidence

High

EPSS

0.017

Percentile

87.8%


Debian LTS Advisory DLA-2653-1 [email protected]
https://www.debian.org/lts/security/ Emilio Pozuelo Monfort
May 10, 2021 https://wiki.debian.org/LTS


Package : libxml2
Version : 2.9.4+dfsg1-2.2+deb9u4
CVE ID : CVE-2021-3516 CVE-2021-3517 CVE-2021-3518 CVE-2021-3537

Several vulnerabilities were discovered in libxml2, a library providing
support to read, modify and write XML and HTML files, which could cause
denial of service via application crash when parsing specially crafted
files.

For Debian 9 stretch, these problems have been fixed in version
2.9.4+dfsg1-2.2+deb9u4.

We recommend that you upgrade your libxml2 packages.

For the detailed security status of libxml2 please refer to
its security tracker page at:
https://security-tracker.debian.org/tracker/libxml2

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

CVSS2

7.5

Attack Vector

NETWORK

Attack 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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.7

Confidence

High

EPSS

0.017

Percentile

87.8%