USN-6429-1: curl vulnerabilities | Cloud Foundry

Severity

High

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 22.04

Description

Jay Satiro discovered that curl incorrectly handled hostnames when using a SOCKS5 proxy. In environments where curl is configured to use a SOCKS5 proxy, a remote attacker could possibly use this issue to execute arbitrary code. This issue only affected Ubuntu 22.04 LTS, and Ubuntu 23.04. (CVE-2023-38545) It was discovered that curl incorrectly handled cookies when an application duplicated certain handles. A local attacker could possibly create a cookie file and inject arbitrary cookies into subsequent connections. (CVE-2023-38546) Update Instructions: Run sudo pro fix USN-6429-1 to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libcurl4-gnutls-dev – 7.68.0-1ubuntu2.20 libcurl4-openssl-dev – 7.68.0-1ubuntu2.20 libcurl3-gnutls – 7.68.0-1ubuntu2.20 libcurl4-doc – 7.68.0-1ubuntu2.20 libcurl3-nss – 7.68.0-1ubuntu2.20 libcurl4-nss-dev – 7.68.0-1ubuntu2.20 libcurl4 – 7.68.0-1ubuntu2.20 curl – 7.68.0-1ubuntu2.20 No subscription required

CVEs contained in this USN include: CVE-2023-38545, CVE-2023-38546.

Affected Cloud Foundry Products and Versions

Severity is high unless otherwise noted.

• cflinuxfs4
  • All versions prior to 1.44.0
• Jammy Stemcells
  • 1.x versions prior to 1.260
  • All other stemcells not listed.
• CF Deployment
  • All versions with Jammy Stemcells prior to 1.260

Mitigation

Users of affected products are strongly encouraged to follow the mitigations below. The Cloud Foundry project recommends upgrading the following releases:

• cflinuxfs4
  • Upgrade all versions to 1.44.0 or greater
• Jammy Stemcells
  • Upgrade 1.x versions to 1.260 or greater
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• CF Deployment
  • For all versions, upgrade Jammy Stemcells to 1.260 or greater

References

• USN Notice
• CVE-2023-38545
• CVE-2023-38546

History

2023-11-09: Initial vulnerability report published.