USN-3834-1: Perl vulnerabilities

  • USN-3834-1: Perl vulnerabilities

    Ubuntu Security Notices wrote:

    perl vulnerabilities

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

    • Ubuntu 18.10
    • Ubuntu 18.04 LTS
    • Ubuntu 16.04 LTS
    • Ubuntu 14.04 LTS

    Summary

    Several security issues were fixed in Perl.

    Software Description

    • perl - Practical Extraction and Report Language

    Details

    Jayakrishna Menon discovered that Perl incorrectly handled Perl_my_setenv. An attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2018-18311)

    Eiichi Tsukata discovered that Perl incorrectly handled certain regular expressions. An attacker could use this issue to cause Perl to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10. (CVE-2018-18312)

    Eiichi Tsukata discovered that Perl incorrectly handled certain regular expressions. An attacker could use this issue to cause Perl to crash, resulting in a denial of service. (CVE-2018-18313)

    Jakub Wilk discovered that Perl incorrectly handled certain regular expressions. An attacker could use this issue to cause Perl to crash, resulting in a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS, and Ubuntu 18.10. (CVE-2018-18314)

    Update instructions

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

    Ubuntu 18.10
    perl - 5.26.2-7ubuntu0.1
    Ubuntu 18.04 LTS
    perl - 5.26.1-6ubuntu0.3
    Ubuntu 16.04 LTS
    perl - 5.22.1-9ubuntu0.6
    Ubuntu 14.04 LTS
    perl - 5.18.2-2ubuntu1.7

    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/3834-1/