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 vulnerability database at X-Force (95644). The entries 67436 and 67435 are pretty similar.

Not Affected

• NetBSD up to 5.1.4/5.2.2

Productinfo

Type

• Operating System

Name

• NetBSD

Version

• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.1.0
• 6.1.1
• 6.1.2
• 6.1.3

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Discussion