libdwarf prior 20160923 File dwarf_calculate_info_section_end_ptr null pointer dereference

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in libdwarf. Affected is the function dwarf_calculate_info_section_end_ptr of the component File Handler. The manipulation leads to null pointer dereference. This vulnerability is referenced as CVE-2016-5030. Remote exploitation of the attack is possible. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in libdwarf (Programming Tool Software). This issue affects the function dwarf_calculate_info_section_end_ptr of the component File Handler. The manipulation with an unknown input leads to a null pointer dereference vulnerability. Using CWE to declare the problem leads to CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. Impacted is availability. The summary by CVE is:

The _dwarf_calculate_info_section_end_ptr function in libdwarf before 20160923 allows remote attackers to cause a denial of service (NULL pointer dereference) via a crafted file.

The bug was discovered 05/24/2016. The weakness was published 02/17/2017 (oss-sec). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2016-5030 since 05/24/2016. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is 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. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.3

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

NVD Base Score: 5.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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-2016-5030 (🔍)
GCVE (CVE): GCVE-0-2016-5030
GCVE (VulDB): GCVE-100-97085
OSVDB: - CVE-2016-5030 - libdwarf - Denial of Service Issue

See also: 🔍

Entryinfo

Created: 02/18/2017 08:54
Updated: 08/15/2020 16:42
Changes: 02/18/2017 08:54 (67), 08/15/2020 16:42 (3)
Complete: 🔍
Cache ID: 216:9BE:103

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