The fnmatch function in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash) via a malformed pattern, which triggers an out-of-bounds read.

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

  - The fnmatch function in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent     attackers to cause a denial of service (application crash) via a malformed pattern, which triggers an out-     of-bounds read. (CVE-2015-8984)

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

The fnmatch function in the GNU C Library (aka glibc or libc6) before 2.22 might allow context-dependent attackers to cause a denial of service (application crash) via a malformed pattern, which triggers an out-of-bounds read. (CVE-2015-8984)

USN-3239-1 fixed vulnerabilities in the GNU C Library. Unfortunately, the fix for CVE-2016-3706 introduced a regression that in some circumstances prevented IPv6 addresses from resolving. This update reverts the change in Ubuntu 12.04 LTS. We apologize for the error.

It was discovered that the GNU C Library incorrectly handled the strxfrm() function. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8982)

It was discovered that an integer overflow existed in the
_IO_wstr_overflow() function of the GNU C Library. An attacker could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8983)

It was discovered that the fnmatch() function in the GNU C Library did not properly handle certain malformed patterns.
An attacker could use this to cause a denial of service.
This issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8984)

Alexander Cherepanov discovered a stack-based buffer overflow in the glob implementation of the GNU C Library. An attacker could use this to specially craft a directory layout and cause a denial of service. (CVE-2016-1234)

Michael Petlan discovered an unbounded stack allocation in the getaddrinfo() function of the GNU C Library. An attacker could use this to cause a denial of service. (CVE-2016-3706)

Aldy Hernandez discovered an unbounded stack allocation in the sunrpc implementation in the GNU C Library. An attacker could use this to cause a denial of service. (CVE-2016-4429)

Tim Ruehsen discovered that the getaddrinfo() implementation in the GNU C Library did not properly track memory allocations. An attacker could use this to cause a denial of service. This issue only affected Ubuntu 16.04 LTS.
(CVE-2016-5417)

Andreas Schwab discovered that the GNU C Library on ARM 32-bit platforms did not properly set up execution contexts.
An attacker could use this to cause a denial of service.
(CVE-2016-6323).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-3239-1 advisory.

    It was discovered that the GNU C Library incorrectly handled the strxfrm() function. An attacker could use     this issue to cause a denial of service or possibly execute arbitrary code. This issue only affected     Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8982)

    It was discovered that an integer overflow existed in the _IO_wstr_overflow() function of the GNU C     Library. An attacker could use this to cause a denial of service or possibly execute arbitrary code. This     issue only affected Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8983)

    It was discovered that the fnmatch() function in the GNU C Library did not properly handle certain     malformed patterns. An attacker could use this to cause a denial of service. This issue only affected     Ubuntu 12.04 LTS and Ubuntu 14.04 LTS. (CVE-2015-8984)

    Alexander Cherepanov discovered a stack-based buffer overflow in the glob implementation of the GNU C     Library. An attacker could use this to specially craft a directory layout and cause a denial of service.
    (CVE-2016-1234)

    Florian Weimer discovered a NULL pointer dereference in the DNS resolver of the GNU C Library. An attacker     could use this to cause a denial of service. (CVE-2015-5180)

    Michael Petlan discovered an unbounded stack allocation in the getaddrinfo() function of the GNU C     Library. An attacker could use this to cause a denial of service. (CVE-2016-3706)

    Aldy Hernandez discovered an unbounded stack allocation in the sunrpc implementation in the GNU C Library.
    An attacker could use this to cause a denial of service. (CVE-2016-4429)

    Tim Ruehsen discovered that the getaddrinfo() implementation in the GNU C Library did not properly track     memory allocations. An attacker could use this to cause a denial of service. This issue only affected     Ubuntu 16.04 LTS. (CVE-2016-5417)

    Andreas Schwab discovered that the GNU C Library on ARM 32-bit platforms did not properly set up execution     contexts. An attacker could use this to cause a denial of service. (CVE-2016-6323)

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
219158	Linux Distros Unpatched Vulnerability : CVE-2015-8984	Nessus	Misc.	medium
119696	F5 Networks BIG-IP : GNU C Library (glibc) vulnerability (K29241247)	Nessus	F5 Networks Local Security Checks	high
97936	Ubuntu 12.04 LTS : eglibc regression (USN-3239-3)	Nessus	Ubuntu Local Security Checks	high
97856	Ubuntu 14.04 LTS / 16.04 LTS : GNU C Library vulnerabilities (USN-3239-1)	Nessus	Ubuntu Local Security Checks	critical

Detections

Analytics

CVE-2015-8984

medium

Tenable Plugins

medium

high

high

critical