CVE-2009-2857

Severity: medium (CVSS 5.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2009-08-19 · updated 2026-06-16
Weakness: CWE-667

Description

The kernel in Sun Solaris 8, 9, and 10, and OpenSolaris before snv_103, does not properly handle interaction between the filesystem and virtual-memory implementations, which allows local users to cause a denial of service (deadlock and system halt) via vectors involving mmap and write operations on the same file.

Affected products

Oracle Opensolaris: before snv_103 — fixed in snv_103
Oracle Corporation Solaris Operating System: 8, 9, 10

How to fix

Upgrade to a fixed version: Oracle Opensolaris snv_103. Check the vendor advisory for mitigations.

References

http://secunia.com/advisories/36319
http://sunsolve.sun.com/search/document.do?assetkey=1-21-127721-02-1
http://sunsolve.sun.com/search/document.do?assetkey=1-66-257848-1
http://www.vupen.com/english/advisories/2009/2291
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6152
http://secunia.com/advisories/36319
http://sunsolve.sun.com/search/document.do?assetkey=1-21-127721-02-1
http://sunsolve.sun.com/search/document.do?assetkey=1-66-257848-1
http://www.vupen.com/english/advisories/2009/2291
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6152

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