libdwarf prior 20160923 Comilation Unit Header out-of-bounds

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability was found in libdwarf. It has been classified as critical. This impacts an unknown function of the component Comilation Unit Header Handler. Performing a manipulation results in out-of-bounds. This vulnerability is known as CVE-2016-5040. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in libdwarf (Programming Tool Software). This affects an unknown code block of the component Comilation Unit Header Handler. 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 confidentiality, and availability. The summary by CVE is:

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.

The bug was discovered 05/24/2016. The weakness was published 02/17/2017 (oss-sec). It is possible to read the advisory at openwall.com. This vulnerability is uniquely identified as CVE-2016-5040 since 05/24/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 230 days. During that time the estimated underground price was around $0-$5k. 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 20160923 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 vulnerability database at Tenable (96368). Similar entries are available at VDB-93870, VDB-96999, VDB-97000 and VDB-97001. 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: 7.0
VulDB Meta Temp Score: 6.8

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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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 20160923

Timelineinfo

05/24/2016 🔍
05/24/2016 +0 days 🔍
01/09/2017 +230 days 🔍
01/10/2017 +1 days 🔍
02/17/2017 +38 days 🔍
02/17/2017 +0 days 🔍
02/18/2017 +1 days 🔍
08/15/2020 +1274 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-5040 (🔍)
GCVE (CVE): GCVE-0-2016-5040
GCVE (VulDB): GCVE-100-97095
OSVDB: - CVE-2016-5040 - libdwarf - Out-of-Bounds Read Issue

See also: 🔍

Entryinfo

Created: 02/18/2017 08:56
Updated: 08/15/2020 16:52
Changes: 02/18/2017 08:56 (67), 08/15/2020 16:52 (3)
Complete: 🔍
Cache ID: 216:518:103

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

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