The remote Ubuntu 16.04 LTS / 18.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4416-1 advisory.

    Florian Weimer discovered that the GNU C Library incorrectly handled certain memory operations. A remote     attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or     possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-12133)

    It was discovered that the GNU C Library incorrectly handled certain SSE2-optimized memmove operations. A     remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of     service, or possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2017-18269)

    It was discovered that the GNU C Library incorrectly handled certain pathname operations. A remote     attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or     possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11236)

    It was discovered that the GNU C Library incorrectly handled certain AVX-512-optimized mempcpy operations.
    A remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of     service, or possibly execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-11237)

    It was discovered that the GNU C Library incorrectly handled certain hostname loookups. A remote attacker     could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly     execute arbitrary code. This issue only affected Ubuntu 18.04 LTS. (CVE-2018-19591)

    Jakub Wilk discovered that the GNU C Library incorrectly handled certain memalign functions. A remote     attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of service, or     possibly execute arbitrary code. This issue only affected Ubuntu 16.04 LTS. (CVE-2018-6485)

    It was discovered that the GNU C Library incorrectly ignored the LD_PREFER_MAP_32BIT_EXEC environment     variable after security transitions. A local attacker could use this issue to bypass ASLR restrictions.
    (CVE-2019-19126)

    It was discovered that the GNU C Library incorrectly handled certain regular expressions. A remote     attacker could possibly use this issue to cause the GNU C Library to crash, resulting in a denial of     service. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2019-9169)

    It was discovered that the GNU C Library incorrectly handled certain bit patterns. A remote attacker could     use this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute     arbitrary code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 18.04 LTS. (CVE-2020-10029)

    It was discovered that the GNU C Library incorrectly handled certain signal trampolines on PowerPC. A     remote attacker could use this issue to cause the GNU C Library to crash, resulting in a denial of     service, or possibly execute arbitrary code. (CVE-2020-1751)

    It was discovered that the GNU C Library incorrectly handled tilde expansion. A remote attacker could use     this issue to cause the GNU C Library to crash, resulting in a denial of service, or possibly execute     arbitrary code. (CVE-2020-1752)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Detections

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Ubuntu 16.04 LTS / 18.04 LTS : GNU C Library vulnerabilities (USN-4416-1)

critical Nessus Plugin ID 138166

Version 1.9