GNU binutils 2.29 libbfd dwarf2.c read_formatted_entries File Descriptor input validation

CVSS Meta Temp Score
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CTI Interest Score
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4.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in GNU binutils 2.29 and classified as problematic. Impacted is the function read_formatted_entries of the file dwarf2.c of the component libbfd. This manipulation as part of File Descriptor causes input validation. The identification of this vulnerability is CVE-2017-14933. The attack can only be executed locally. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic was found in GNU binutils 2.29 (Programming Tool Software). Affected by this vulnerability is the function read_formatted_entries of the file dwarf2.c of the component libbfd. The manipulation as part of a File Descriptor leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. The summary by CVE is:

read_formatted_entries in dwarf2.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 (infinite loop) via a crafted ELF file.

The bug was discovered 09/27/2017. The weakness was shared 09/30/2017 as Bug 22210 as not defined bug report (Bugzilla). It is possible to read the advisory at sourceware.org. This vulnerability is known as CVE-2017-14933 since 09/29/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 119162 (GLSA-201811-17 : 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 2 years after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (119162) and SecurityFocus (BID 101203†). The entries VDB-110111, VDB-110175, VDB-110176 and VDB-110177 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.3

VulDB Base Score: 3.3
VulDB Temp Score: 3.2
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: Input validation
CWE: CWE-20
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: 119162
Nessus Name: GLSA-201811-17 : 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: 🔍

Patch: 30d0157a2ad64e64e5ff9fcc0dbe78a3e682f573

Timelineinfo

09/26/2017 🔍
09/27/2017 +1 days 🔍
09/29/2017 +2 days 🔍
09/29/2017 +0 days 🔍
09/30/2017 +1 days 🔍
09/30/2017 +0 days 🔍
11/27/2018 +423 days 🔍
11/27/2018 +0 days 🔍
12/30/2022 +1494 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: Bug 22210
Researcher: skysider
Status: Not defined
Confirmation: 🔍

CVE: CVE-2017-14933 (🔍)
GCVE (CVE): GCVE-0-2017-14933
GCVE (VulDB): GCVE-100-107299
SecurityFocus: 101203 - GNU Binutils 'read_formatted_entries()' Function Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 09/30/2017 11:34
Updated: 12/30/2022 12:59
Changes: 09/30/2017 11:34 (70), 11/20/2019 19:23 (10), 01/14/2021 19:32 (3), 12/30/2022 12:59 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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