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.
References
Configurations
Configuration 1 (hide)
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History
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Information
Published : 2009-08-28 15:30
Updated : 2024-02-04 17:33
NVD link : CVE-2009-2695
Mitre link : CVE-2009-2695
CVE.ORG link : CVE-2009-2695
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-119
Improper Restriction of Operations within the Bounds of a Memory Buffer