dwarf_leb.c in libdwarf allows attackers to cause a denial of service (SIGSEGV).

The remote Redhat Enterprise Linux 6 host has one or more packages installed that are affected by a vulnerability that has been acknowledged by the vendor but will not be patched.

  - libdwarf: Out-of-bounds read in dwarf_leb.c (CVE-2015-8538)

Note that Nessus has not tested for this issue but has instead relied on the package manager's report that the package is installed.

The remote Redhat Enterprise Linux 7 host has one or more packages installed that are affected by multiple vulnerabilities that have been acknowledged by the vendor but will not be patched.

  - libdwarf: heap-based buffer over-read in dwarf_formsdata() (CVE-2017-9055)

  - Use-after-free vulnerability in dwarfdump in libdwarf 20130126 through 20140805 might allow remote     attackers to cause a denial of service (program crash) via a crafted ELF file. (CVE-2014-9482)

  - dwarf_leb.c in libdwarf allows attackers to cause a denial of service (SIGSEGV). (CVE-2015-8538)

Note that Nessus has not tested for these issues but has instead relied on the package manager's report that the package is installed.

According to the versions of the libdwarf package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - dwarf_leb.c in libdwarf allows attackers to cause a     denial of service (SIGSEGV).(CVE-2015-8538)

  - The dwarf_dealloc function in libdwarf before 20160923     allows remote attackers to cause a denial of service     (out-of-bounds read and crash) via a crafted DWARF     section.(CVE-2016-5043)

  - The dwarf_get_aranges_list function in libdwarf before     20160923 allows remote attackers to cause a denial of     service (infinite loop and crash) via a crafted DWARF     section.(CVE-2016-5042)

  - libdwarf before 20160923 allows remote attackers to     cause a denial of service (out-of-bounds read and     crash) via a large length value in a compilation unit     header.(CVE-2016-5040)

  - The get_attr_value function in libdwarf before 20160923     allows remote attackers to cause a denial of service     (out-of-bounds read) via a crafted object with all-bits     on.(CVE-2016-5039)

  - The dwarf_get_macro_startend_file function in     dwarf_macro5.c in libdwarf before 20160923 allows     remote attackers to cause a denial of service     (out-of-bounds read) via a crafted string offset for     .debug_str.(CVE-2016-5038)

  - The dump_block function in print_sections.c in libdwarf     before 20160923 allows remote attackers to cause a     denial of service (out-of-bounds read) via crafted     frame data.(CVE-2016-5036)

  - dwarf_elf_access.c in libdwarf before 20160923 allows     remote attackers to cause a denial of service     (out-of-bounds write) via a crafted file, related to     relocation records.(CVE-2016-5034)

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

Several vulnerabilities were discovered in dwarfutils, a tool and library for reading/consuming and writing/producing DWARF debugging information. The Common Vulnerabilities and Exposures project identifies the following issues :

CVE-2015-8538

A specially crafted ELF file can cause a segmentation fault.

CVE-2015-8750

A specially crafted ELF file can cause a NULL pointer dereference.

CVE-2016-2050

Out-of-bounds write

CVE-2016-2091

Out-of-bounds read

CVE-2016-5034

Out-of-bounds write

CVE-2016-5036

Out-of-bounds read

CVE-2016-5038

Out-of-bounds read

CVE-2016-5039

Out-of-bounds read

CVE-2016-5042

A specially crafted DWARF section can cause an infinite loop, reading from increasing memory addresses until the application crashes.

For Debian 7 'Wheezy', these problems have been fixed in version 20120410-2+deb7u2.

We recommend that you upgrade your dwarfutils packages.

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

ID	Name	Product	Family	Severity
198632	RHEL 6 : libdwarf (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	medium
198610	RHEL 7 : libdwarf (Unpatched Vulnerability)	Nessus	Red Hat Local Security Checks	critical
130666	EulerOS 2.0 SP5 : libdwarf (EulerOS-SA-2019-2204)	Nessus	Huawei Local Security Checks	high
94143	Debian DLA-669-1 : dwarfutils security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2015-8538

medium

Tenable Plugins

medium

critical

high

high