GNU binutils 2.31 libbfd syms.c _bfd_generic_read_minisymbols resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.4$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in GNU binutils 2.31. This affects the function _bfd_generic_read_minisymbols of the file syms.c of the component libbfd. Executing a manipulation can lead to resource management. This vulnerability is tracked as CVE-2018-20002. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in GNU binutils 2.31 (Programming Tool Software). It has been declared as problematic. This vulnerability affects the function _bfd_generic_read_minisymbols of the file syms.c of the component libbfd. The manipulation with an unknown input leads to a resource management vulnerability. The CWE definition for the vulnerability is CWE-399. As an impact it is known to affect availability. CVE summarizes:

The _bfd_generic_read_minisymbols function in syms.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.31, has a memory leak via a crafted ELF file, leading to a denial of service (memory consumption), as demonstrated by nm.

The bug was discovered 12/07/2018. The weakness was disclosed 12/10/2018 (Website). The advisory is available at securityfocus.com. This vulnerability was named CVE-2018-20002 since 12/09/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details 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.

Applying the patch c2f5dc30afa34696f2da0081c4ac50b958ecb0e9 is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 106142†). The entries VDB-127694 and VDB-127695 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 3.3
VulDB Temp Score: 3.3
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: Resource management
CWE: CWE-399 / CWE-404
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Patch: c2f5dc30afa34696f2da0081c4ac50b958ecb0e9

Timelineinfo

12/07/2018 🔍
12/09/2018 +2 days 🔍
12/09/2018 +0 days 🔍
12/09/2018 +0 days 🔍
12/10/2018 +1 days 🔍
12/10/2018 +0 days 🔍
06/13/2023 +1646 days 🔍

Sourcesinfo

Vendor: gnu.org

Advisory: K62602089⛔
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-20002 (🔍)
GCVE (CVE): GCVE-0-2018-20002
GCVE (VulDB): GCVE-100-127762
SecurityFocus: 106142 - GNU Binutils CVE-2018-20002 Denial of Service Vulnerability

See also: 🔍

Entryinfo

Created: 12/10/2018 10:46
Updated: 06/13/2023 20:49
Changes: 12/10/2018 10:46 (62), 04/19/2020 12:29 (4), 06/13/2023 20:41 (4), 06/13/2023 20:49 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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