CVE-2011-2496

Severity

49%

Complexity

39%

Confidentiality

115%

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.

Integer overflow in the vma_to_resize function in mm/mremap.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (BUG_ON and system crash) via a crafted mremap system call that expands a memory mapping.

CVSS 2.0 Base Score 4.9. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:N/I:N/A:C).

Overview

First reported 12 years ago

2012-06-13 10:24:00

Last updated 12 years ago

2012-06-28 04:00:00

Affected Software

Linux Kernel 2.6.38

2.6.38

Linux Kernel 2.6.38 Release Candidate 1

2.6.38

Linux Kernel 2.6.38 Release Candidate 2

2.6.38

Linux Kernel 2.6.38 Release Candidate 3

2.6.38

Linux Kernel 2.6.38 Release Candidate 4

2.6.38

Linux Kernel 2.6.38 Release Candidate 5

2.6.38

Linux Kernel 2.6.38 Release Candidate 6

2.6.38

Linux Kernel 2.6.38 Release Candidate 7

2.6.38

Linux Kernel 2.6.38 Release Candidate 8

2.6.38

Linux Kernel 2.6.38.1

2.6.38.1

Linux Kernel 2.6.38.2

2.6.38.2

Linux Kernel 2.6.38.3

2.6.38.3

Linux Kernel 2.6.38.4

2.6.38.4

Linux Kernel 2.6.38.5

2.6.38.5

Linux Kernel 2.6.38.6

2.6.38.6

Linux Kernel 2.6.38.7

2.6.38.7

Linux Kernel

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=982134ba62618c2d69fbbbd166d0a11ee3b7e3d8

Patch

[oss-security] 20110627 Re: CVE request: kernel: mm: avoid wrapping vm_pgoff in mremap() and stack expansions

https://bugzilla.redhat.com/show_bug.cgi?id=716538

https://github.com/torvalds/linux/commit/982134ba62618c2d69fbbbd166d0a11ee3b7e3d8

Exploit, Patch

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