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.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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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