libdwarf prior 20161124 dwarfdump Command libdwarf/dwarf_util.c _dwarf_get_size_of_val out-of-bounds

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.7$0-$5k0.00

Summaryinfo

A vulnerability was found in libdwarf. It has been rated as problematic. Affected by this issue is the function _dwarf_get_size_of_val of the file libdwarf/dwarf_util.c of the component dwarfdump Command. Performing a manipulation results in out-of-bounds. This vulnerability is cataloged as CVE-2016-8679. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in libdwarf (Programming Tool Software). It has been classified as problematic. This affects the function _dwarf_get_size_of_val of the file libdwarf/dwarf_util.c of the component dwarfdump Command. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on availability. The summary by CVE is:

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.

The bug was discovered 02/15/2017. The weakness was shared 02/15/2017 by Agostino Sarubbo with Gentoo (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-8679 since 10/15/2016. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 96368 (FreeBSD : libdwarf -- multiple vulnerabilities (83041ca7-d690-11e6-9171-14dae9d210b8)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l.

Upgrading to version 20161124 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (96368) and SecurityFocus (BID 93601†). The entries VDB-93870, VDB-97000, VDB-97001 and VDB-97083 are related to this item. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.9
VulDB Meta Temp Score: 4.8

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 96368
Nessus Name: FreeBSD : libdwarf -- multiple vulnerabilities (83041ca7-d690-11e6-9171-14dae9d210b8)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: libdwarf 20161124

Timelineinfo

10/06/2016 🔍
10/15/2016 +9 days 🔍
01/09/2017 +86 days 🔍
01/10/2017 +1 days 🔍
02/15/2017 +36 days 🔍
02/15/2017 +0 days 🔍
02/15/2017 +0 days 🔍
02/16/2017 +1 days 🔍
08/15/2020 +1276 days 🔍

Sourcesinfo

Advisory: openwall.com
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-8679 (🔍)
GCVE (CVE): GCVE-0-2016-8679
GCVE (VulDB): GCVE-100-96999
SecurityFocus: 93601 - Libdwarf 'dwarf_util.c' Heap Buffer Overflow Vulnerability
OSVDB: - CVE-2016-8679 - Libdwarf - Out-of-Bounds Read Issue

See also: 🔍

Entryinfo

Created: 02/16/2017 08:59
Updated: 08/15/2020 08:45
Changes: 02/16/2017 08:59 (69), 08/15/2020 08:45 (7)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!