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Security Advisory

USN-5402-1: OpenSSL vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 18.04

Description

Elison Niven discovered that OpenSSL incorrectly handled the c_rehash script. A local attacker could possibly use this issue to execute arbitrary commands when c_rehash is run. (CVE-2022-1292) Raul Metsma discovered that OpenSSL incorrectly verified certain response signing certificates. A remote attacker could possibly use this issue to spoof certain response signing certificates. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-1343) Tom Colley discovered that OpenSSL used the incorrect MAC key in the RC4-MD5 ciphersuite. In non-default configurations were RC4-MD5 is enabled, a remote attacker could possibly use this issue to modify encrypted communications. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-1434) Aliaksei Levin discovered that OpenSSL incorrectly handled resources when decoding certificates and keys. A remote attacker could possibly use this issue to cause OpenSSL to consume resources, leading to a denial of service. This issue only affected Ubuntu 22.04 LTS. (CVE-2022-1473) Update Instructions: Run `sudo ua fix USN-5402-1` to fix the vulnerability. The problem can be corrected by updating your system to the following package versions: libssl1.0.0 – 1.0.2n-1ubuntu5.9 libssl1.0-dev – 1.0.2n-1ubuntu5.9 openssl1.0 – 1.0.2n-1ubuntu5.9 No subscription required libssl-dev – 1.1.1-1ubuntu2.1~18.04.17 openssl – 1.1.1-1ubuntu2.1~18.04.17 libssl-doc – 1.1.1-1ubuntu2.1~18.04.17 libssl1.1 – 1.1.1-1ubuntu2.1~18.04.17 No subscription required

CVEs contained in this USN include: CVE-2022-1292, CVE-2022-1343, CVE-2022-1434, CVE-2022-1473.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • Bionic Stemcells
    • 1.x versions prior to 1.84
    • All other stemcells not listed.
  • cflinuxfs3
    • All versions prior to 0.292.0
  • CF Deployment
    • All versions prior to 21.0.0, or later versions with Bionic Stemcells prior to 1.84

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 1.84 or greater
    • All other stemcells should be upgraded to the latest version available onĀ bosh.io.
  • cflinuxfs3
    • Upgrade all versions to 0.292.0 or greater
  • CF Deployment
    • Upgrade all versions to 21.0.0 or greater and upgrade Bionic Stemcells to 1.84 or greater

History

2022-07-29: Initial vulnerability report published.

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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