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

curl vulnerabilities
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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