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USN-3547-1: Libtasn1 vulnerabilities


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USN-3547-1: Libtasn1 vulnerabilities

Severity

Medium

Vendor

Canonical Ubuntu

Versions Affected

  • Canonical Ubuntu 14.04

Description

It was discovered that Libtasn1 incorrectly handled certain files. If a user were tricked into opening a crafted file, an attacker could possibly use this to cause a denial of service. This issue only affected Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-10790)

It was discovered that Libtasn1 incorrectly handled certain inputs. An attacker could possibly use this to cause Libtasn1 to hang, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10. (CVE-2018-6003)

Affected Cloud Foundry Products and Versions

Severity is medium unless otherwise noted.

  • Cloud Foundry BOSH stemcells are vulnerable, including:
    • 3363.x versions prior to 3363.49
    • 3421.x versions prior to 3421.39
    • 3445.x versions prior to 3445.25
    • 3468.x versions prior to 3468.22
    • All other stemcells not listed.

Mitigation

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

  • The Cloud Foundry project recommends upgrading the following BOSH stemcells:
    • Upgrade 3363.x versions to 3363.49
    • Upgrade 3421.x versions to 3421.39
    • Upgrade 3445.x versions to 3445.25
    • Upgrade 3468.x versions to 3468.22
    • All other stemcells should be upgraded to the latest version available on bosh.io.

References

Cloud Foundry Foundation Security Team Profile Image

Cloud Foundry Foundation Security Team, AUTHOR

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