The d_print_comp function in cp-demangle.c in libiberty allows remote attackers to cause a denial of service (segmentation fault and crash) via a crafted binary, which triggers infinite recursion and a buffer overflow, related to a node having "itself as ancestor more than once."

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - The d_print_comp function in cp-demangle.c in libiberty allows remote attackers to cause a denial of     service (segmentation fault and crash) via a crafted binary, which triggers infinite recursion and a     buffer overflow, related to a node having itself as ancestor more than once. (CVE-2016-4491)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote Ubuntu 16.04 ESM host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-4336-2 advisory.

    USN-4336-1 fixed several vulnerabilities in GNU binutils. This update provides the corresponding update     for Ubuntu 16.04 ESM.



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.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3368-1 advisory.

    It was discovered that libiberty incorrectly handled certain string operations. If a user or automated     system were tricked into processing a specially crafted binary, a remote attacker could use this issue to     cause libiberty to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue     only applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-2226)

    It was discovered that libiberty incorrectly handled parsing certain binaries. If a user or automated     system were tricked into processing a specially crafted binary, a remote attacker could use this issue to     cause libiberty to crash, resulting in a denial of service. This issue only applied to Ubuntu 14.04 LTS     and Ubuntu 16.04 LTS. (CVE-2016-4487, CVE-2016-4488, CVE-2016-4489, CVE-2016-4490, CVE-2016-4492,     CVE-2016-4493, CVE-2016-6131)

    It was discovered that libiberty incorrectly handled parsing certain binaries. If a user or automated     system were tricked into processing a specially crafted binary, a remote attacker could use this issue to     cause libiberty to crash, resulting in a denial of service. (CVE-2016-4491)

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.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3367-1 advisory.

    Hanno Bck discovered that gdb incorrectly handled certain malformed AOUT headers in PE executables. If a     user or automated system were tricked into processing a specially crafted binary, a remote attacker could     use this issue to cause gdb to crash, resulting in a denial of service, or possibly execute arbitrary     code. This issue only applied to Ubuntu 14.04 LTS. (CVE-2014-8501)

    It was discovered that gdb incorrectly handled printing bad bytes in Intel Hex objects. If a user or     automated system were tricked into processing a specially crafted binary, a remote attacker could use this     issue to cause gdb to crash, resulting in a denial of service. This issue only applied to Ubuntu 14.04     LTS. (CVE-2014-9939)

    It was discovered that gdb incorrectly handled certain string operations. If a user or automated system     were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause     gdb to crash, resulting in a denial of service, or possibly execute arbitrary code. This issue only     applied to Ubuntu 14.04 LTS and Ubuntu 16.04 LTS. (CVE-2016-2226)

    It was discovered that gdb incorrectly handled parsing certain binaries. If a user or automated system     were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause     gdb to crash, resulting in a denial of service. This issue only applied to Ubuntu 14.04 LTS and Ubuntu     16.04 LTS. (CVE-2016-4487, CVE-2016-4488, CVE-2016-4489, CVE-2016-4490, CVE-2016-4492, CVE-2016-4493,     CVE-2016-6131)

    It was discovered that gdb incorrectly handled parsing certain binaries. If a user or automated system     were tricked into processing a specially crafted binary, a remote attacker could use this issue to cause     gdb to crash, resulting in a denial of service. (CVE-2016-4491)

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.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-3337-1 advisory.

    It was discovered that Valgrind incorrectly handled certain string operations. If a user or automated     system were tricked into processing a specially crafted binary, a remote attacker could possibly execute     arbitrary code. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS and Ubuntu 16.10.
    (CVE-2016-2226)

    It was discovered that Valgrind incorrectly handled parsing certain binaries. If a user or automated     system were tricked into processing a specially crafted binary, a remote attacker could use this issue to     cause Valgrind to crash, resulting in a denial of service. (CVE-2016-4487, CVE-2016-4488, CVE-2016-4489,     CVE-2016-4490, CVE-2016-4491, CVE-2016-4492, CVE-2016-4493, CVE-2016-6131)

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.

ID	Name	Product	Family	Severity
219631	Linux Distros Unpatched Vulnerability : CVE-2016-4491	Nessus	Misc.	medium
151919	Ubuntu 16.04 ESM : GNU binutils vulnerabilities (USN-4336-2)	Nessus	Ubuntu Local Security Checks	critical
102016	Ubuntu 14.04 LTS / 16.04 LTS : libiberty vulnerabilities (USN-3368-1)	Nessus	Ubuntu Local Security Checks	high
102015	Ubuntu 14.04 LTS / 16.04 LTS : gdb vulnerabilities (USN-3367-1)	Nessus	Ubuntu Local Security Checks	critical
100989	Ubuntu 14.04 LTS / 16.04 LTS : Valgrind vulnerabilities (USN-3337-1)	Nessus	Ubuntu Local Security Checks	high

Detections

Analytics

CVE-2016-4491

medium

Tenable Plugins

medium

critical

high

critical

high