Packages
- gawk - GNU implementation of AWK
Details
It was discovered that Gawk incorrectly handled memory when processing
input using the getline redirection. An attacker could possibly use
this issue to cause a denial of service. (CVE-2026-40467)
It was discovered that Gawk incorrectly handled certain integer
calculations when allocating memory. An attacker could possibly use
this issue to cause a denial of service or overwrite heap memory with
attacker-controlled data. (CVE-2026-40468)
It was discovered that Gawk incorrectly handled certain integer
calculations when performing substitutions. An attacker could possibly
use this issue to cause a denial of service. (CVE-2026-40469)
It was discovered that Gawk incorrectly handled memory when reading
directory entries. An attacker could possibly use this issue to cause
a denial of service or execute arbitrary...
It was discovered that Gawk incorrectly handled memory when processing
input using the getline redirection. An attacker could possibly use
this issue to cause a denial of service. (CVE-2026-40467)
It was discovered that Gawk incorrectly handled certain integer
calculations when allocating memory. An attacker could possibly use
this issue to cause a denial of service or overwrite heap memory with
attacker-controlled data. (CVE-2026-40468)
It was discovered that Gawk incorrectly handled certain integer
calculations when performing substitutions. An attacker could possibly
use this issue to cause a denial of service. (CVE-2026-40469)
It was discovered that Gawk incorrectly handled memory when reading
directory entries. An attacker could possibly use this issue to cause
a denial of service or execute arbitrary code. This issue only affected
Ubuntu 26.04 LTS. (CVE-2026-40553)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | gawk – 1:5.3.2-1ubuntu1.1 | ||
| 24.04 LTS noble | gawk – 1:5.2.1-2ubuntu0.1 | ||
| 22.04 LTS jammy | gawk – 1:5.1.0-1ubuntu0.2 | ||
| 20.04 LTS focal | gawk – 1:5.0.1+dfsg-1ubuntu0.1+esm1 | ||
| 18.04 LTS bionic | gawk – 1:4.1.4+dfsg-1ubuntu0.1~esm2 | ||
| 16.04 LTS xenial | gawk – 1:4.1.3+dfsg-0.1ubuntu0.1~esm2 | ||
| 14.04 LTS trusty | gawk – 1:4.0.1+dfsg-2.1ubuntu2+esm2 | ||
Reduce your security exposure
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