[SECURITY] [DLA 2606-1] lxml security update

2021-03-2418:10:42

lists.debian.org

6.1 Medium

CVSS3

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

4.3 Medium

CVSS2

Access Vector

NETWORK

Access 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

0.002 Low

EPSS

Percentile

61.0%

JSON

Debian LTS Advisory DLA-2606-1 [email protected]
https://www.debian.org/lts/security/ Thorsten Alteholz
March 24, 2021 https://wiki.debian.org/LTS

Package : lxml
Version : 3.7.1-1+deb9u4
CVE ID : CVE-2021-28957

An issue has been found in lxml, a pythonic binding for the libxml2 and
libxslt libraries.

Due to missing input sanitization, XSS is possible for the HTML5
formaction attribute.

For Debian 9 stretch, this problem has been fixed in version
3.7.1-1+deb9u4.

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

OSVersionArchitecturePackageVersionFilename
Debian10i386python3-lxml-dbg< 4.3.2-1+deb10u3python3-lxml-dbg_4.3.2-1+deb10u3_i386.deb
Debian10mipspython-lxml< 4.3.2-1+deb10u3python-lxml_4.3.2-1+deb10u3_mips.deb
Debian10armelpython3-lxml-dbg< 4.3.2-1+deb10u3python3-lxml-dbg_4.3.2-1+deb10u3_armel.deb
Debian9armelpython-lxml-dbg< 3.7.1-1+deb9u4python-lxml-dbg_3.7.1-1+deb9u4_armel.deb
Debian10i386python-lxml< 4.3.2-1+deb10u3python-lxml_4.3.2-1+deb10u3_i386.deb
Debian10amd64python-lxml-dbg< 4.3.2-1+deb10u3python-lxml-dbg_4.3.2-1+deb10u3_amd64.deb
Debian10mips64elpython-lxml-dbg< 4.3.2-1+deb10u3python-lxml-dbg_4.3.2-1+deb10u3_mips64el.deb
Debian9arm64python3-lxml-dbg< 3.7.1-1+deb9u4python3-lxml-dbg_3.7.1-1+deb9u4_arm64.deb
Debian9i386python-lxml-dbg< 3.7.1-1+deb9u4python-lxml-dbg_3.7.1-1+deb9u4_i386.deb
Debian10alllxml< 4.3.2-1+deb10u3lxml_4.3.2-1+deb10u3_all.deb

OS	Version	Architecture	Package	Version	Filename
Debian	10	i386	python3-lxml-dbg	< 4.3.2-1+deb10u3	python3-lxml-dbg_4.3.2-1+deb10u3_i386.deb
Debian	10	mips	python-lxml	< 4.3.2-1+deb10u3	python-lxml_4.3.2-1+deb10u3_mips.deb
Debian	10	armel	python3-lxml-dbg	< 4.3.2-1+deb10u3	python3-lxml-dbg_4.3.2-1+deb10u3_armel.deb
Debian	9	armel	python-lxml-dbg	< 3.7.1-1+deb9u4	python-lxml-dbg_3.7.1-1+deb9u4_armel.deb
Debian	10	i386	python-lxml	< 4.3.2-1+deb10u3	python-lxml_4.3.2-1+deb10u3_i386.deb
Debian	10	amd64	python-lxml-dbg	< 4.3.2-1+deb10u3	python-lxml-dbg_4.3.2-1+deb10u3_amd64.deb
Debian	10	mips64el	python-lxml-dbg	< 4.3.2-1+deb10u3	python-lxml-dbg_4.3.2-1+deb10u3_mips64el.deb
Debian	9	arm64	python3-lxml-dbg	< 3.7.1-1+deb9u4	python3-lxml-dbg_3.7.1-1+deb9u4_arm64.deb
Debian	9	i386	python-lxml-dbg	< 3.7.1-1+deb9u4	python-lxml-dbg_3.7.1-1+deb9u4_i386.deb
Debian	10	all	lxml	< 4.3.2-1+deb10u3	lxml_4.3.2-1+deb10u3_all.deb