Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 18.04
• Canonical Ubuntu 22.04

Description

Hiroki Kurosawa discovered that curl incorrectly handled HSTS support when certain hostnames included IDN characters. A remote attacker could possibly use this issue to cause curl to use unencrypted connections. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 22.10. (CVE-2022-43551) It was discovered that curl incorrectly handled denials when using HTTP proxies. A remote attacker could use this issue to cause curl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2022-43552) Update Instructions: Run sudo pro fix USN-5788-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libcurl4-gnutls-dev – 7.58.0-2ubuntu3.22 libcurl4-openssl-dev – 7.58.0-2ubuntu3.22 libcurl3-gnutls – 7.58.0-2ubuntu3.22 libcurl4-doc – 7.58.0-2ubuntu3.22 libcurl3-nss – 7.58.0-2ubuntu3.22 libcurl4-nss-dev – 7.58.0-2ubuntu3.22 libcurl4 – 7.58.0-2ubuntu3.22 curl – 7.58.0-2ubuntu3.22 No subscription required

CVEs contained in this USN include: CVE-2022-43551, CVE-2022-43552.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Bionic Stemcells
  • 1.x versions prior to 1.171
  • All other stemcells not listed.
• cflinuxfs3
  • All versions prior to 0.348.0
• Jammy Stemcells
  • 1.x versions prior to 1.80
  • All other stemcells not listed.
• CF Deployment
  • All versions prior to 24.7.0, or later versions with Jammy Stemcells prior to 1.80 or Bionic Stemcells prior to 1.171

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below.

The Cloud Foundry project recommends upgrading the following releases:

• Bionic Stemcells
  • Upgrade 1.x versions to 1.171 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• cflinuxfs3
  • Upgrade all versions to 0.348.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.80 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • Upgrade all versions to 24.7.0 or greater, upgrade Jammy Stemcells to 1.80 or greater, and upgrade Bionic Stemcells to 1.171 or greater

References

• USN Notice
• CVE-2022-43551
• CVE-2022-43552

History

2023-01-26: Initial vulnerability report published.