USN-5495-2: curl regression

Publication date

29 September 2025

Overview

USN-5495-1 introduced a regression in curl

Releases


Packages

  • curl - HTTP, HTTPS, and FTP client and client libraries

Details

USN-5495-1 fixed vulnerabilities in curl. The fix for CVE-2022-32205
miscalculated the maximum cookie size, causing a regression. This update
fixes the problem.

Original advisory details:

Harry Sintonen discovered that curl incorrectly handled certain cookies.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 21.10, and Ubuntu 22.04 LTS. (CVE-2022-32205)

Harry Sintonen discovered that curl incorrectly handled certain HTTP compressions.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2022-32206)

Harry Sintonen incorrectly handled certain file permissions.
An attacker could possibly use this issue to expose sensitive information.
This issue only affected Ubuntu 21.10, and Ubuntu 22.04 LTS. (

USN-5495-1 fixed vulnerabilities in curl. The fix for CVE-2022-32205
miscalculated the maximum cookie size, causing a regression. This update
fixes the problem.

Original advisory details:

Harry Sintonen discovered that curl incorrectly handled certain cookies.
An attacker could possibly use this issue to cause a denial of service.
This issue only affected Ubuntu 21.10, and Ubuntu 22.04 LTS. (CVE-2022-32205)

Harry Sintonen discovered that curl incorrectly handled certain HTTP compressions.
An attacker could possibly use this issue to cause a denial of service.
(CVE-2022-32206)

Harry Sintonen incorrectly handled certain file permissions.
An attacker could possibly use this issue to expose sensitive information.
This issue only affected Ubuntu 21.10, and Ubuntu 22.04 LTS. (CVE-2022-32207)

Harry Sintonen discovered that curl incorrectly handled certain FTP-KRB messages.
An attacker could possibly use this to perform a machine-in-the-middle attack.
(CVE-2022-32208)


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
22.04 jammy curl –  7.81.0-1ubuntu1.21
libcurl3-gnutls –  7.81.0-1ubuntu1.21
libcurl3-nss –  7.81.0-1ubuntu1.21
libcurl4 –  7.81.0-1ubuntu1.21

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