A curl security update has been released for Ubuntu Linux 18.04 LTS, 20.04 LTS, 21.10, and 22.04 LTS.

USN-5495-1: curl vulnerabilities

=========================================================================
Ubuntu Security Notice USN-5495-1
June 27, 2022

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

- Ubuntu 22.04 LTS
- Ubuntu 21.10
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS

Summary:

Several security issues were fixed in curl.

Software Description:
- curl: HTTP, HTTPS, and FTP client and client libraries

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-diddle attack.
(CVE-2022-32208)

Update instructions:

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

Ubuntu 22.04 LTS:
curl 7.81.0-1ubuntu1.3
libcurl3-gnutls 7.81.0-1ubuntu1.3
libcurl3-nss 7.81.0-1ubuntu1.3
libcurl4 7.81.0-1ubuntu1.3

Ubuntu 21.10:
curl 7.74.0-1.3ubuntu2.3
libcurl3-gnutls 7.74.0-1.3ubuntu2.3
libcurl3-nss 7.74.0-1.3ubuntu2.3
libcurl4 7.74.0-1.3ubuntu2.3

Ubuntu 20.04 LTS:
curl 7.68.0-1ubuntu2.12
libcurl3-gnutls 7.68.0-1ubuntu2.12
libcurl3-nss 7.68.0-1ubuntu2.12
libcurl4 7.68.0-1ubuntu2.12

Ubuntu 18.04 LTS:
curl 7.58.0-2ubuntu3.19
libcurl3-gnutls 7.58.0-2ubuntu3.19
libcurl3-nss 7.58.0-2ubuntu3.19
libcurl4 7.58.0-2ubuntu3.19

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

References:
  https://ubuntu.com/security/notices/USN-5495-1
CVE-2022-32205, CVE-2022-32206, CVE-2022-32207, CVE-2022-32208

Package Information:
  https://launchpad.net/ubuntu/+source/curl/7.81.0-1ubuntu1.3
  https://launchpad.net/ubuntu/+source/curl/7.74.0-1.3ubuntu2.3
  https://launchpad.net/ubuntu/+source/curl/7.68.0-1ubuntu2.12
  https://launchpad.net/ubuntu/+source/curl/7.58.0-2ubuntu3.19