VDB-107509 · CVE-2017-15023 · BID 101611

GNU binutils 2.29 libbfd dwarf2.c concat_filename null pointer dereference

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

A vulnerability has been found in GNU binutils 2.29 (Programming Tool Software) and classified as problematic. Affected by this vulnerability is the function concat_filename of the file dwarf2.c of the component libbfd. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is 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. 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, does not properly validate the format count, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted ELF file, related to concat_filename.

The bug was discovered 10/04/2017. The weakness was shared 10/05/2017 by Agostino Sarubbo with Gentoo (Website). The advisory is shared at blogs.gentoo.org. This vulnerability is known as CVE-2017-15023 since 10/04/2017. 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 are known, but no exploit is available.

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 4 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (105627). The entries 98344, 98345, 98370 and 98371 are related to this item.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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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: 🔍
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Exploitinginfo

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

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: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Patch: c361faae8d964db951b7100cada4dcdc983df1bf

Timelineinfo

10/03/2017 🔍
10/04/2017 +1 days 🔍
10/04/2017 +0 days 🔍
10/04/2017 +0 days 🔍
10/05/2017 +1 days 🔍
10/05/2017 +0 days 🔍
01/07/2018 +94 days 🔍
01/08/2018 +1 days 🔍
12/30/2022 +1817 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: blogs.gentoo.org
Researcher: Agostino Sarubbo
Organization: Gentoo
Status: Not defined

CVE: CVE-2017-15023 (🔍)
SecurityFocus: 101611 - GNU Binutils CVE-2017-15023 Remote Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 10/05/2017 15:25
Updated: 12/30/2022 18:59
Changes: 10/05/2017 15:25 (66), 11/22/2019 11:52 (11), 12/30/2022 18:59 (4)
Complete: 🔍

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