libdwarf dwarf_leb.c input validation

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CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.6$0-$5k0.00

A vulnerability classified as problematic has been found in libdwarf (Programming Tool Software) (version unknown). Affected is an unknown code of the file dwarf_leb.c. The manipulation with an unknown input leads to a privilege escalation vulnerability. CWE is classifying the issue as CWE-20. This is going to have an impact on availability.

The bug was discovered 12/10/2015. The weakness was presented 06/07/2017 (oss-sec). The advisory is available at openwall.com. This vulnerability is traded as CVE-2015-8538 since 12/10/2015. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 314 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 94143 (Debian DLA-669-1 : dwarfutils security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context local.

Upgrading 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 (94143). See 96831, 97089, 97091 and 97093 for similar entries.

Productinfoedit

Type

Name

CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.6

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2infoedit

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

NVD Base Score: 🔍

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-20
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 94143
Nessus Name: Debian DLA-669-1 : dwarfutils security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfoedit

12/10/2015 🔍
12/10/2015 +0 days 🔍
10/19/2016 +314 days 🔍
10/20/2016 +1 days 🔍
06/07/2017 +230 days 🔍
06/07/2017 +0 days 🔍
06/08/2017 +1 days 🔍
10/14/2019 +858 days 🔍

Sourcesinfoedit

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

CVE: CVE-2015-8538 (🔍)
See also: 🔍

Entryinfoedit

Created: 06/08/2017 08:38 AM
Updated: 10/14/2019 03:54 PM
Changes: (3) vulnerability_discoverydate countermeasure_name countermeasure_date
Complete: 🔍

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