CVE-2009-2695

Publication date 28 August 2009

Last updated 24 July 2024

Ubuntu priority

The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which allows local users to gain privileges by exploiting NULL pointer dereference vulnerabilities, related to (1) the default configuration of the allow_unconfined_mmap_low boolean in SELinux on Red Hat Enterprise Linux (RHEL) 5, (2) an error that causes allow_unconfined_mmap_low to be ignored in the unconfined_t domain, (3) lack of a requirement for the CAP_SYS_RAWIO capability for these mmap operations, and (4) interaction between the mmap_min_addr protection mechanism and certain application programs.

Status

Show unmaintained releases

Package	Ubuntu Release	Status
linux	9.04 jaunty	Fixed 2.6.28-16.55
	8.10 intrepid	Fixed 2.6.27-15.43
	8.04 LTS hardy	Fixed 2.6.24-25.63
	6.06 LTS dapper	Not in release
linux-source-2.6.15	9.04 jaunty	Not in release
	8.10 intrepid	Not in release
	8.04 LTS hardy	Not in release
	6.06 LTS dapper	Not affected

CVE-2009-2695

Status

References

Related Ubuntu Security Notices (USN)

Other references