libdwarf 20151114 ELF File get_abbrev_array_info out-of-bounds write

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in libdwarf 20151114. This affects the function get_abbrev_array_info of the component ELF File Handler. The manipulation leads to out-of-bounds write. This vulnerability is traded as CVE-2016-2050. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in libdwarf 20151114 (Programming Tool Software). This issue affects the function get_abbrev_array_info of the component ELF File Handler. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. Using CWE to declare the problem leads to CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. Impacted is availability. The summary by CVE is:

The get_abbrev_array_info function in libdwarf-20151114 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted elf file.

The bug was discovered 01/04/2016. The weakness was shared 01/31/2017 (Website). The advisory is shared at openwall.com. The identification of this vulnerability is CVE-2016-2050 since 01/24/2016. 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 129 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 92205 (Fedora 24 : libdwarf (2016-f36c5935e5)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published before and not just after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (92205). The entry VDB-80832 is related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

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

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
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: 92205
Nessus Name: Fedora 24 : libdwarf (2016-f36c5935e5)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 840962
OpenVAS Name: Fedora Update for libdwarf FEDORA-2016-f36c5935e5
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/04/2016 🔍
01/24/2016 +20 days 🔍
05/12/2016 +109 days 🔍
07/14/2016 +63 days 🔍
01/31/2017 +201 days 🔍
01/31/2017 +0 days 🔍
02/01/2017 +1 days 🔍
11/11/2022 +2109 days 🔍

Sourcesinfo

Advisory: FEDORA-2016-f36c5935e5
Status: Not defined

CVE: CVE-2016-2050 (🔍)
GCVE (CVE): GCVE-0-2016-2050
GCVE (VulDB): GCVE-100-96329
OSVDB: - CVE-2016-2050 - libdwarf - Out-of-Bounds Write Issue

See also: 🔍

Entryinfo

Created: 02/01/2017 07:14
Updated: 11/11/2022 10:10
Changes: 02/01/2017 07:14 (68), 08/08/2020 12:08 (5), 11/11/2022 10:10 (4)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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