USN-4957-1: DjVuLibre vulnerabilities | Cloud Foundry

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 18.04

Description

It was discovered that DjVuLibre incorrectly handled certain memory operations. If a user or automated system were tricked into processing a specially crafted DjVu file, a remote attacker could cause applications to hang or crash, resulting in a denial of service, or possibly execute arbitrary code.

CVEs contained in this USN include: CVE-2021-32493, CVE-2021-32490, CVE-2021-3500, CVE-2021-32492, CVE-2021-32491.

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• cflinuxfs3
  • All versions prior to 0.238.0
• CF Deployment
  • All versions prior to 16.15.0

Mitigation

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

• cflinuxfs3
  • Upgrade all versions to 0.238.0 or greater
• CF Deployment
  • Upgrade all versions to 16.15.0 or greater

References

• USN Notice
• CVE-2021-32493
• CVE-2021-32490
• CVE-2021-3500
• CVE-2021-32492
• CVE-2021-32491

History

2021-06-11: Initial vulnerability report published.