GNU binutils 2.29 BFD Library tekhex.c getsym tekhex Binary memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.1$0-$5k0.00

Summaryinfo

A vulnerability was found in GNU binutils 2.29. It has been rated as critical. This impacts the function getsym of the file tekhex.c of the component BFD Library. Performing a manipulation as part of tekhex Binary results in memory corruption. This vulnerability is cataloged as CVE-2017-12967. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in GNU binutils 2.29 (Programming Tool Software). This affects the function getsym of the file tekhex.c of the component BFD Library. The manipulation as part of a tekhex Binary leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The getsym function in tekhex.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.29, allows remote attackers to cause a denial of service (stack-based buffer over-read and application crash) via a malformed tekhex binary.

The bug was discovered 06/07/2017. The weakness was shared 08/19/2017 by Marcus Meissner (Website). The advisory is shared at securityfocus.com. This vulnerability is uniquely identified as CVE-2017-12967 since 08/19/2017. 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 are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 73 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105627 (GLSA-201801-01 : Binutils: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading eliminates this vulnerability. A possible mitigation has been published 6 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (105627) and SecurityFocus (BID 100462†). The entries VDB-98344, VDB-98345, VDB-98370 and VDB-98371 are related to this item. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: 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: 105627
Nessus Name: GLSA-201801-01 : Binutils: Multiple vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Timelineinfo

06/07/2017 🔍
08/19/2017 +73 days 🔍
08/19/2017 +0 days 🔍
08/19/2017 +0 days 🔍
08/20/2017 +1 days 🔍
08/23/2017 +3 days 🔍
01/07/2018 +137 days 🔍
01/08/2018 +1 days 🔍
11/09/2019 +670 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: securityfocus.com⛔
Researcher: Marcus Meissner
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-12967 (🔍)
GCVE (CVE): GCVE-0-2017-12967
GCVE (VulDB): GCVE-100-105609
SecurityFocus: 100462 - GNU Binutils CVE-2017-12967 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 08/20/2017 21:11
Updated: 11/09/2019 09:22
Changes: 08/20/2017 21:11 (66), 11/09/2019 09:22 (13)
Complete: 🔍
Cache ID: 216::103

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

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