Severity
Low
Vendor
Canonical Ubuntu
Versions Affected
- Canonical Ubuntu 16.04
- Canonical Ubuntu 18.04
Description
ManhND discovered that Perl incorrectly handled certain regular expressions. In environments where untrusted regular expressions are evaluated, a remote attacker could possibly use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-10543)
Hugo van der Sanden and Slaven Rezic discovered that Perl incorrectly handled certain regular expressions. In environments where untrusted regular expressions are evaluated, a remote attacker could possibly use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-10878)
Sergey Aleynikov discovered that Perl incorrectly handled certain regular expressions. In environments where untrusted regular expressions are evaluated, a remote attacker could possibly use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2020-12723)
CVEs contained in this USN include: CVE-2020-10878, CVE-2020-10543, CVE-2020-12723.
Affected Cloud Foundry Products and Versions
Severity is low unless otherwise noted.
- cflinuxfs3
- All versions prior to 0.211.0
- Xenial Stemcells
- 315.x versions prior to 315.201
- 456.x versions prior to 456.128
- 621.x versions prior to 621.92
- All other stemcells not listed.
- CF Deployment
- All versions prior to 15.4.0
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 0.211.0 or greater
- Xenial Stemcells
- Upgrade 315.x versions to 315.201 or greater
- Upgrade 456.x versions to 456.128 or greater
- Upgrade 621.x versions to 621.92 or greater
- All other stemcells should be upgraded to the latest version available on bosh.io.
- CF Deployment
- Upgrade all versions to 15.4.0 or greater
References
History
2021-03-09: Initial vulnerability report published.
