GNU binutils up to 2.27 BFD Library find_link out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability has been found in GNU binutils up to 2.27 and classified as problematic. Affected by this issue is the function find_link of the component BFD Library. This manipulation causes out-of-bounds. This vulnerability is tracked as CVE-2017-7303. The attack is possible to be carried out remotely. No exploit exists. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in GNU binutils up to 2.27 (Programming Tool Software) and classified as problematic. Affected by this vulnerability is the function find_link of the component BFD Library. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

The Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.28, is vulnerable to an invalid read (of size 4) because of missing a check (in the find_link function) for null headers before attempting to match them. This vulnerability causes Binutils utilities like strip to crash.

The bug was discovered 12/06/2016. The weakness was disclosed 03/29/2017 as Bug 20922 as not defined bug report (Bugzilla). It is possible to read the advisory at sourceware.org. This vulnerability is known as CVE-2017-7303 since 03/29/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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 113 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 105225 (openSUSE Security Update : binutils (openSUSE-2017-1330)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171830 (OpenSUSE Security Update for binutils (openSUSE-SU-2018:3223-1)).

Upgrading to version 2.28 eliminates this vulnerability. A possible mitigation has been published 9 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (105225) and SecurityFocus (BID 97213†). The entries VDB-98231, VDB-98373, VDB-99063 and VDB-99064 are pretty similar. 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: 6.4
VulDB Meta Temp Score: 6.3

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

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / 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: 105225
Nessus Name: openSUSE Security Update : binutils (openSUSE-2017-1330)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: binutils 2.28

Timelineinfo

12/06/2016 🔍
03/29/2017 +113 days 🔍
03/29/2017 +0 days 🔍
03/29/2017 +0 days 🔍
03/29/2017 +0 days 🔍
03/30/2017 +1 days 🔍
12/02/2017 +247 days 🔍
12/14/2017 +12 days 🔍
12/04/2024 +2547 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: Bug 20922
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7303 (🔍)
GCVE (CVE): GCVE-0-2017-7303
GCVE (VulDB): GCVE-100-99067
SecurityFocus: 97213 - GNU Binutils CVE-2017-7303 Remote Denial of Service Vulnerability
OSVDB: - CVE-2017-7303 - Binutils - Invalid Read Issue

See also: 🔍

Entryinfo

Created: 03/30/2017 09:25
Updated: 12/04/2024 01:40
Changes: 03/30/2017 09:25 (74), 08/23/2020 23:41 (9), 12/04/2024 01:40 (21)
Complete: 🔍
Cache ID: 216::103

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