USN-3813-1: pyOpenSSL vulnerabilities

  • USN-3813-1: pyOpenSSL vulnerabilities

    Ubuntu Security Notices wrote:

    pyopenssl vulnerabilities

    A security issue affects these releases of Ubuntu and its derivatives:

    • Ubuntu 16.04 LTS

    Summary

    Several security issues were fixed in pyOpenSSL.

    Software Description

    • pyopenssl - Python wrapper around the OpenSSL library

    Details

    It was discovered that pyOpenSSL incorrectly handled memory when handling X509 objects. A remote attacker could use this issue to cause pyOpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-1000807)

    It was discovered that pyOpenSSL incorrectly handled memory when performing operations on a PKCS #12 store. A remote attacker could possibly use this issue to cause pyOpenSSL to consume resources, resulting in a denial of service. (CVE-2018-1000808)

    Update instructions

    The problem can be corrected by updating your system to the following package versions:

    Ubuntu 16.04 LTS
    python-openssl - 0.15.1-2ubuntu0.2
    python3-openssl - 0.15.1-2ubuntu0.2

    To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

    In general, a standard system update will make all the necessary changes.

    References

    Source: usn.ubuntu.com/3813-1/