CVE-2017-1000369

Exim supports the use of multiple -p command line arguments which are malloc()ed and never free()ed, used in conjunction with other issues allows attackers to cause arbitrary code execution. This affects exim version 4.89 and earlier. Please note that at this time upstream has released a patch (commit 65e061b76867a9ea7aeeb535341b790b90ae6c21), but it is not known if a new point release is available that addresses this issue at this time.

Weakness

The product does not release or incorrectly releases a resource before it is made available for re-use.

Affected Software

Name	Vendor	Start Version	End Version
Exim	Exim	4.88	4.88
Exim	Exim	4.89	4.89
Exim	Exim	*	4.87.1
Exim	Exim	4.88	4.88
Exim	Exim	4.88	4.88
Exim	Exim	4.88	4.88
Exim	Exim	4.88	4.88
Exim	Exim	4.88	4.88
Exim	Exim	4.88	4.88
Exim	Exim	4.89	4.89
Exim	Exim	4.89	4.89
Exim	Exim	4.89	4.89
Exim	Exim	4.89	4.89
Exim	Exim	4.89	4.89
Exim	Exim	4.89	4.89
Exim	Exim	4.89	4.89

Potential Mitigations

Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
For example, languages such as Java, Ruby, and Lisp perform automatic garbage collection that releases memory for objects that have been deallocated.

NVD	https://nvd.nist.gov/vuln/detail/CVE-2017-1000369
CWE	https://cwe.mitre.org/data/definitions/404.html

Improper Resource Shutdown or Release

Weakness

Affected Software

Potential Mitigations

References

CVE-2017-1000369

Improper Resource Shutdown or Release

Weakness

Affected Software

Potential Mitigations

Related Attack Patterns

References