==========================================================================
Ubuntu Security Notice USN-6455-1
October 26, 2023

exim4 vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 23.10
- Ubuntu 23.04
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS (Available with Ubuntu Pro)
- Ubuntu 16.04 LTS (Available with Ubuntu Pro)
- Ubuntu 14.04 LTS (Available with Ubuntu Pro)

Summary:

Several security issues were fixed in Exim.

Software Description:
- exim4: Exim is a mail transport agent

Details:

It was discovered that Exim incorrectly handled validation of user-supplied
data, which could lead to memory corruption. A remote attacker could
possibly use this issue to execute arbitrary code. (CVE-2023-42117)

It was discovered that Exim incorrectly handled validation of user-supplied
data, which could lead to an out-of-bounds read. An attacker could possibly
use this issue to expose sensitive information. (CVE-2023-42119)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 23.10:
   exim4-daemon-heavy              4.96-17ubuntu2.1
   exim4-daemon-light              4.96-17ubuntu2.1

Ubuntu 23.04:
   exim4-daemon-heavy              4.96-14ubuntu1.3
   exim4-daemon-light              4.96-14ubuntu1.3

Ubuntu 22.04 LTS:
   exim4-daemon-heavy              4.95-4ubuntu2.4
   exim4-daemon-light              4.95-4ubuntu2.4

Ubuntu 20.04 LTS:
   exim4-daemon-heavy              4.93-13ubuntu1.9
   exim4-daemon-light              4.93-13ubuntu1.9

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   exim4-daemon-heavy              4.90.1-1ubuntu1.10+esm2
   exim4-daemon-light              4.90.1-1ubuntu1.10+esm2

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   exim4-daemon-heavy              4.86.2-2ubuntu2.6+esm5
   exim4-daemon-light              4.86.2-2ubuntu2.6+esm5

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   exim4-daemon-heavy              4.82-3ubuntu2.4+esm7
   exim4-daemon-light              4.82-3ubuntu2.4+esm7

In general, a standard system update will make all the necessary changes.

References:
   https://ubuntu.com/security/notices/USN-6455-1
   CVE-2023-42117, CVE-2023-42119

Package Information:
   https://launchpad.net/ubuntu/+source/exim4/4.96-17ubuntu2.1
   https://launchpad.net/ubuntu/+source/exim4/4.96-14ubuntu1.3
   https://launchpad.net/ubuntu/+source/exim4/4.95-4ubuntu2.4
   https://launchpad.net/ubuntu/+source/exim4/4.93-13ubuntu1.9

Ubuntu 6455-1: Exim vulnerabilities

October 30, 2023
Several security issues were fixed in Exim.

Summary

A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 23.10 - Ubuntu 23.04 - Ubuntu 22.04 LTS - Ubuntu 20.04 LTS - Ubuntu 18.04 LTS (Available with Ubuntu Pro) - Ubuntu 16.04 LTS (Available with Ubuntu Pro) - Ubuntu 14.04 LTS (Available with Ubuntu Pro) Summary: Several security issues were fixed in Exim. Software Description: - exim4: Exim is a mail transport agent Details: It was discovered that Exim incorrectly handled validation of user-supplied data, which could lead to memory corruption. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2023-42117) It was discovered that Exim incorrectly handled validation of user-supplied data, which could lead to an out-of-bounds read. An attacker could possibly use this issue to expose sensitive information. (CVE-2023-42119)

Update Instructions

The problem can be corrected by updating your system to the following package versions: Ubuntu 23.10: exim4-daemon-heavy 4.96-17ubuntu2.1 exim4-daemon-light 4.96-17ubuntu2.1 Ubuntu 23.04: exim4-daemon-heavy 4.96-14ubuntu1.3 exim4-daemon-light 4.96-14ubuntu1.3 Ubuntu 22.04 LTS: exim4-daemon-heavy 4.95-4ubuntu2.4 exim4-daemon-light 4.95-4ubuntu2.4 Ubuntu 20.04 LTS: exim4-daemon-heavy 4.93-13ubuntu1.9 exim4-daemon-light 4.93-13ubuntu1.9 Ubuntu 18.04 LTS (Available with Ubuntu Pro): exim4-daemon-heavy 4.90.1-1ubuntu1.10+esm2 exim4-daemon-light 4.90.1-1ubuntu1.10+esm2 Ubuntu 16.04 LTS (Available with Ubuntu Pro): exim4-daemon-heavy 4.86.2-2ubuntu2.6+esm5 exim4-daemon-light 4.86.2-2ubuntu2.6+esm5 Ubuntu 14.04 LTS (Available with Ubuntu Pro): exim4-daemon-heavy 4.82-3ubuntu2.4+esm7 exim4-daemon-light 4.82-3ubuntu2.4+esm7 In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6455-1

CVE-2023-42117, CVE-2023-42119

Severity
Ubuntu Security Notice USN-6455-1

Package Information

https://launchpad.net/ubuntu/+source/exim4/4.96-17ubuntu2.1 https://launchpad.net/ubuntu/+source/exim4/4.96-14ubuntu1.3 https://launchpad.net/ubuntu/+source/exim4/4.95-4ubuntu2.4 https://launchpad.net/ubuntu/+source/exim4/4.93-13ubuntu1.9

Related News

News

Powered By

Footer Logo

Linux Security - Your source for Top Linux News, Advisories, HowTo's and Feature Release.

Powered By

Footer Logo