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Ubuntu 22.04 LTS: 6373-1 Moderate: gawk Denial of Service

ubuntu
Calendar Grey September 14, 2023
Scroller Ubuntu
Patch released to resolve gawk instability that may result in denial of service vulnerabilities across various Ubuntu editions.
gawk could be made to crash if it received specially crafted input.

Summary

gawk could be made to crash if it received specially crafted

input.

Software Description:

- gawk: GNU awk, a pattern scanning and processing language

Details:

It was discovered that gawk could be made to read out of bounds when

processing certain inputs. If a user or an automated system were tricked

into opening a specially crafted input, an attacker could possibly use

this issue to cause a denial of service.

Topics%20covered

Topics Covered

security advisory moderate denial of service input validation ubuntu gawk

Update Instructions

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

Ubuntu 22.04 LTS:
   gawk                            1:5.1.0-1ubuntu0.1

Ubuntu 20.04 LTS:
   gawk                            1:5.0.1+dfsg-1ubuntu0.1

Ubuntu 18.04 LTS (Available with Ubuntu Pro):
   gawk                            1:4.1.4+dfsg-1ubuntu0.1~esm1

Ubuntu 16.04 LTS (Available with Ubuntu Pro):
   gawk                            1:4.1.3+dfsg-0.1ubuntu0.1~esm1

Ubuntu 14.04 LTS (Available with Ubuntu Pro):
   gawk                            1:4.0.1+dfsg-2.1ubuntu2+esm1

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

References

  https://ubuntu.com/security/notices/USN-6373-1

  CVE-2023-4156

Severity
important
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6373-1

Topics%20covered

Topics Covered

security advisory moderate denial of service input validation ubuntu gawk

Package Information

  https://launchpad.net/ubuntu/+source/gawk/1:5.1.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/gawk/1:5.0.1+dfsg-1ubuntu0.1

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