USN-3464-1: Wget vulnerabilities

Medium

Vendor

Canonical Ubuntu

Versions Affected

• Canonical Ubuntu 14.04

Description

Antti Levomäki, Christian Jalio, and Joonas Pihlaja discovered that Wget incorrectly handled certain HTTP responses. A remote attacker could use this issue to cause Wget to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2017-13089, CVE-2017-13090)

Dawid Golunski discovered that Wget incorrectly handled recursive or mirroring mode. A remote attacker could possibly use this issue to bypass intended access list restrictions. (CVE-2016-7098)

Orange Tsai discovered that Wget incorrectly handled CRLF sequences in HTTP headers. A remote attacker could possibly use this issue to inject arbitrary HTTP headers. (CVE-2017-6508)

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

• Cloud Foundry BOSH stemcells are vulnerable, including:
  • 3421.x versions prior to 3421.32
  • 3445.x versions prior to 3445.17
  • 3468.x versions prior to 3468.11
  • All other stemcells not listed.
• All versions of Cloud Foundry cflinuxfs2 prior to 1.165.0

Mitigation

OSS users are strongly encouraged to follow one of the mitigations below:

• The Cloud Foundry project recommends upgrading the following BOSH stemcells:
  • Upgrade 3421.x versions prior to 3421.32
  • Upgrade 3445.x versions prior to 3445.17
  • Upgrade 3468.x versions prior to 3468.11
  • All other stemcells should be upgraded to the latest version available on bosh.io.
• The Cloud Foundry project recommends that Cloud Foundry deployments run with cflinuxfs2 version 1.165.0 or later.

References

• USN-3464-1
• CVE-2017-13089
• CVE-2017-13090
• CVE-2016-7098
• CVE-2017-6508