Vulnerability CVE-2016-8679

Vulnerability Name:

CVE-2016-8679 (CCN-122098)

Assigned:

2016-10-15

Published:

2017-02-15

Updated:

2022-03-01

Summary:

The _dwarf_get_size_of_val function in libdwarf/dwarf_util.c in Libdwarf before 20161124 allows remote attackers to cause a denial of service (out-of-bounds read) by calling the dwarfdump command on a crafted file.

CVSS v3 Severity:

6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Network Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): Required
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): High

4.0 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
3.5 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): None User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Low

CVSS v2 Severity:

4.3 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

2.1 Low (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

Vulnerability Type:

CWE-125

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2016-8679

Source: CCN
Type: oss-sec Mailing List, Sat, 15 Oct 2016 22:47:53 -0400
Re: libdwarf: heap-based buffer overflow in _dwarf_get_size_of_val (dwarf_util.c)

Source: MLIST
Type: Mailing List, Patch, Third Party Advisory
[oss-security] 20161015 Re: libdwarf: heap-based buffer overflow in _dwarf_get_size_of_val (dwarf_util.c)

Source: BID
Type: Third Party Advisory, VDB Entry
93601

Source: CCN
Type: BID-93601
Libdwarf 'dwarf_util.c' Heap Buffer Overflow Vulnerability

Source: MISC
Type: Exploit, Patch, Third Party Advisory
https://blogs.gentoo.org/ago/2016/10/06/libdwarf-heap-based-buffer-overflow-in-_dwarf_get_size_of_val-dwarf_util-c/

Source: CONFIRM
Type: Issue Tracking, Patch, Third Party Advisory, VDB Entry
https://bugzilla.redhat.com/show_bug.cgi?id=1385689

Source: XF
Type: UNKNOWN
libdwarf-cve20168679-dos(122098)

Source: CCN
Type: libdwarf GIT Repository
libdwarf

Vulnerable Configuration:

Configuration 1:

cpe:/a:libdwarf_project:libdwarf:*:*:*:*:*:*:*:* (Version >= 1999-12-14 and < 2016-11-24)

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:com.ubuntu.bionic:def:201686790000000	V	CVE-2016-8679 on Ubuntu 18.04 LTS (bionic) - medium.	2017-02-15
oval:com.ubuntu.artful:def:20168679000	V	CVE-2016-8679 on Ubuntu 17.10 (artful) - medium.	2017-02-15
oval:com.ubuntu.trusty:def:20168679000	V	CVE-2016-8679 on Ubuntu 14.04 LTS (trusty) - medium.	2017-02-15
oval:com.ubuntu.xenial:def:201686790000000	V	CVE-2016-8679 on Ubuntu 16.04 LTS (xenial) - medium.	2017-02-15
oval:com.ubuntu.bionic:def:20168679000	V	CVE-2016-8679 on Ubuntu 18.04 LTS (bionic) - medium.	2017-02-15
oval:com.ubuntu.xenial:def:20168679000	V	CVE-2016-8679 on Ubuntu 16.04 LTS (xenial) - medium.	2017-02-15
oval:com.ubuntu.disco:def:201686790000000	V	CVE-2016-8679 on Ubuntu 19.04 (disco) - medium.	2017-02-15
oval:com.ubuntu.cosmic:def:20168679000	V	CVE-2016-8679 on Ubuntu 18.10 (cosmic) - medium.	2017-02-15
oval:com.ubuntu.cosmic:def:201686790000000	V	CVE-2016-8679 on Ubuntu 18.10 (cosmic) - medium.	2017-02-15
oval:com.ubuntu.precise:def:20168679000	V	CVE-2016-8679 on Ubuntu 12.04 LTS (precise) - medium.	2017-02-15

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