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HistoryNov 26, 2020 - 6:32 p.m.

[SECURITY] [DLA 2467-1] lxml security update

2020-11-2618:32:53
lists.debian.org
58
lxml
upgrade
security tracker
debian 9
xss
javascript escaping
cve-2018-19787
cve-2020-27783

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

7.4

Confidence

High

EPSS

0.004

Percentile

74.2%


Debian LTS Advisory DLA-2467-1 [email protected]
https://www.debian.org/lts/security/ Abhijith PA
November 26, 2020 https://wiki.debian.org/LTS


Package : lxml
Version : 3.7.1-1+deb9u1
CVE ID : CVE-2018-19787 CVE-2020-27783

CVE-2018-19787

It was discovered that there was a XSS injection vulnerability in
the LXML HTML/XSS manipulation library for Python.

CVE-2020-27783

javascript escaping through the <noscript> and <style> combinations.

For Debian 9 stretch, these problems have been fixed in version
3.7.1-1+deb9u1.

We recommend that you upgrade your lxml packages.

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

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

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

CVSS3

6.1

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

NONE

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

AI Score

7.4

Confidence

High

EPSS

0.004

Percentile

74.2%