NetBSD up to 6.0.4/6.1.3 System Call execve memory leak

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.4$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic has been found in NetBSD up to 6.0.4/6.1.3. The impacted element is the function execve of the component System Call Handler. Performing a manipulation results in memory leak. No exploit exists. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in NetBSD up to 6.0.4/6.1.3 (Operating System). This affects the function execve of the component System Call Handler. The manipulation with an unknown input leads to a memory leak vulnerability. CWE is classifying the issue as CWE-401. The product does not sufficiently track and release allocated memory after it has been used, which slowly consumes remaining memory. This is going to have an impact on availability.

The weakness was disclosed 08/27/2014 by Maxime Villard as NetBSD-SA2014-009 as confirmed advisory (Website). The advisory is shared at ftp.netbsd.org. The exploitability is told to be easy. An attack has to be approached locally. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. The advisory points out:

A memory leak in the kernel could cause a local (un)privileged user to use up kernel memory via a bogus ELF binary, and thus to freeze - or eventually panic - the system.

Upgrading to version 6.0.5 or 6.1.4 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (95644) and SecurityFocus (BID 69474†). The entries VDB-67436 and VDB-67435 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Not Affected

  • NetBSD up to 5.1.4/5.2.2

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 5.4

VulDB Base Score: 6.2
VulDB Temp Score: 5.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Memory leak
CWE: CWE-401 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Unproven
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: NetBSD 6.0.5/6.1.4

Timelineinfo

08/27/2014 🔍
08/27/2014 +0 days 🔍
08/29/2014 +2 days 🔍
09/03/2014 +5 days 🔍
07/05/2017 +1036 days 🔍

Sourcesinfo

Advisory: NetBSD-SA2014-009
Researcher: Maxime Villard
Status: Confirmed

GCVE (VulDB): GCVE-100-67437
X-Force: 95644 - NetBSD execve denial of service, Medium Risk
SecurityFocus: 69474 - NetBSD 'execve' System Call Multiple Local Denial of Service Vulnerabilities

See also: 🔍

Entryinfo

Created: 09/03/2014 10:21
Updated: 07/05/2017 08:48
Changes: 09/03/2014 10:21 (45), 07/05/2017 08:48 (9)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

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