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ubuntuUbuntuUSN-5638-3
HistoryNov 23, 2022 - 12:00 a.m.

Expat vulnerability

2022-11-2300:00:00
ubuntu.com
27
ubuntu
xml parsing
memory handling

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.1%

JSON

Releases

  • Ubuntu 22.10
  • Ubuntu 22.04 LTS
  • Ubuntu 20.04 LTS
  • Ubuntu 18.04 ESM
  • Ubuntu 16.04 ESM

Packages

  • expat - XML parsing C library

Details

USN-5638-1 fixed a vulnerability in Expat. This update provides
the corresponding updates for Ubuntu 16.04 ESM, Ubuntu 18.04 LTS,
Ubuntu 20.04 LTS, Ubuntu 22.04 LTS and Ubuntu 22.10. (CVE-2022-43680)
This update also fixes a minor regression introduced in
Ubuntu 18.04 LTS.

We apologize for the inconvenience.

Original advisory details:

Rhodri James discovered that Expat incorrectly handled memory when
processing certain malformed XML files. An attacker could possibly
use this issue to cause a crash or execute arbitrary code.

OSVersionArchitecturePackageVersionFilename
Ubuntu22.10noarchexpat< 2.4.8-2ubuntu0.22.10.1UNKNOWN
Ubuntu22.10noarchexpat-dbgsym< 2.4.8-2ubuntu0.22.10.1UNKNOWN
Ubuntu22.10noarchlibexpat1< 2.4.8-2ubuntu0.22.10.1UNKNOWN
Ubuntu22.10noarchlibexpat1-dbgsym< 2.4.8-2ubuntu0.22.10.1UNKNOWN
Ubuntu22.10noarchlibexpat1-dev< 2.4.8-2ubuntu0.22.10.1UNKNOWN
Ubuntu22.04noarchexpat< 2.4.7-1ubuntu0.2UNKNOWN
Ubuntu22.04noarchexpat-dbgsym< 2.4.7-1ubuntu0.2UNKNOWN
Ubuntu22.04noarchlibexpat1< 2.4.7-1ubuntu0.2UNKNOWN
Ubuntu22.04noarchlibexpat1-dbgsym< 2.4.7-1ubuntu0.2UNKNOWN
Ubuntu22.04noarchlibexpat1-dev< 2.4.7-1ubuntu0.2UNKNOWN
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7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

8.4 High

AI Score

Confidence

High

0.004 Low

EPSS

Percentile

74.1%

JSON
Related for USN-5638-3
nessus61f51almalinux2rocky2openvas35githubexploit5cvelist1debian2suse2osv11slackware2fedora6redhat15wolfi1ibm21redhatcve1amazon2alpinelinux1debiancve1ubuntucve1redos1oraclelinux2aix1cgr1cbl_mariner2cloudlinux1cve1veracode1prion1mageia2cloudfoundry2gentoo1nvd1ubuntu2ics2photon4kaspersky1