CVE-2020-24977

2020-09-0400:00:00

ubuntu.com

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.8 High

CVSS3

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

0.004 Low

EPSS

Percentile

74.0%

JSON

GNOME project libxml2 v2.9.10 has a global buffer over-read vulnerability
in xmlEncodeEntitiesInternal at libxml2/entities.c. The issue has been
fixed in commit 50f06b3e.

Bugs

Notes

Author	Note
mdeslaur	only affects xmllint contrary to description, not fixed in 8e7c20a1
ccdm94	According to upstream, 50f06b3e is only a partial fix. Commit bf22713507 must be included in order to achieve a complete fix. Commit bf22713507, however, seems to have introduced an issue (see 237), fixed by 1098c30a04, which in turn seems to be the fix for CVE-2021-3518.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchlibxml2< 2.9.4+dfsg1-6.1ubuntu1.4UNKNOWN
ubuntu20.04noarchlibxml2< 2.9.10+dfsg-5ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchlibxml2< 2.9.10+dfsg-5ubuntu0.20.10.2UNKNOWN
ubuntu14.04noarchlibxml2< 2.9.1+dfsg1-3ubuntu4.13+esm2UNKNOWN
ubuntu16.04noarchlibxml2< 2.9.3+dfsg1-1ubuntu0.7+esm1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	libxml2	< 2.9.4+dfsg1-6.1ubuntu1.4	UNKNOWN
ubuntu	20.04	noarch	libxml2	< 2.9.10+dfsg-5ubuntu0.20.04.1	UNKNOWN
ubuntu	20.10	noarch	libxml2	< 2.9.10+dfsg-5ubuntu0.20.10.2	UNKNOWN
ubuntu	14.04	noarch	libxml2	< 2.9.1+dfsg1-3ubuntu4.13+esm2	UNKNOWN
ubuntu	16.04	noarch	libxml2	< 2.9.3+dfsg1-1ubuntu0.7+esm1	UNKNOWN