CVE-2010-4169

Published: 22 November 2010

Use-after-free vulnerability in mm/mprotect.c in the Linux kernel before 2.6.37-rc2 allows local users to cause a denial of service via vectors involving an mprotect system call.

From the Ubuntu Security Team

Dave Jones discovered that the mprotect system call did not correctly handle merged VMAs. A local attacker could exploit this to crash the system, leading to a denial of service.

Notes

Author	Note
mdeslaur	introduced in dab5855

Priority

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Not vulnerable
	karmic	Released (2.6.31-22.73)
	lucid	Released (2.6.32-28.52)
	maverick	Released (2.6.35-25.43)
	natty	Released (2.6.37-5.13)
	upstream	Released (2.6.37~rc2)
	Patches: upstream: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=63bfd7384b119409685a17d5c58f0b56e5dc03da karmic: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-4169/patches/karmic/linux/0001-perf_events-Fix-perf_counter_mmap-hook-in-mprotect.txt lucid: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-4169/patches/lucid/linux/0001-perf_events-Fix-perf_counter_mmap-hook-in-mprotect.txt maverick: http://chinstrap.ubuntu.com/~bradf/CVEs/CVE-2010-4169/patches/maverick/linux/0001-perf_events-Fix-perf_counter_mmap-hook-in-mprotect.txt
linux-ec2 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-307.27)
	lucid	Released (2.6.32-312.24)
	maverick	Ignored (end of life)
	natty	Does not exist
	upstream	Released (2.6.37~rc2)
linux-fsl-imx51 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Released (2.6.31-112.30)
	lucid	Released (2.6.31-608.22)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.37~rc2)
linux-lts-backport-maverick Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Released (2.6.35-25.44~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.37~rc2)
linux-lts-backport-natty Launchpad, Ubuntu, Debian	hardy	Does not exist
	lucid	Not vulnerable (2.6.38-1.27~lucid1)
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.37~rc2)
linux-mvl-dove Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Ignored (end of life)
	lucid	Released (2.6.32-214.30)
	maverick	Released (2.6.32-414.30)
	natty	Does not exist
	upstream	Released (2.6.37~rc2)
linux-source-2.6.15 Launchpad, Ubuntu, Debian	dapper	Not vulnerable
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Does not exist
	natty	Does not exist
	upstream	Released (2.6.37~rc2)
linux-ti-omap4 Launchpad, Ubuntu, Debian	dapper	Does not exist
	hardy	Does not exist
	karmic	Does not exist
	lucid	Does not exist
	maverick	Released (2.6.35-903.23)
	natty	Not vulnerable (2.6.38-1201.2)
	upstream	Released (2.6.37~rc2)

References

Bugs

https://bugzilla.redhat.com/show_bug.cgi?id=651671

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