CVE-2010-4258

Description

The do_exit function in kernel/exit.c in the Linux kernel before 2.6.36.2 does not properly handle a KERNEL_DS get_fs value, which allows local users to bypass intended access_ok restrictions, overwrite arbitrary kernel memory locations, and gain privileges by leveraging a (1) BUG, (2) NULL pointer dereference, or (3) page fault, as demonstrated by vectors involving the clear_child_tid feature and the splice system call.

References

http://openwall.com/lists/oss-security/2010/12/02/2 ([oss-security] 20101202 CVE request: kernel: failure to revert address limit override in OOPS error path) mailing-list

http://secunia.com/advisories/43056 (43056) third-party-advisory

http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html (SUSE-SA:2011:004) vendor-advisory

http://secunia.com/advisories/42778 (42778) third-party-advisory

http://openwall.com/lists/oss-security/2010/12/02/3 ([oss-security] 20101202 kernel: Dangerous interaction between clear_child_tid, set_fs(), and kernel oopses) mailing-list

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=33dd94ae1ccbfb7bf0fb6c692bc3d1c4269e6177

http://secunia.com/advisories/42801 (42801) third-party-advisory

http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html (SUSE-SA:2011:002) vendor-advisory

http://blog.nelhage.com/2010/12/cve-2010-4258-from-dos-to-privesc/

http://openwall.com/lists/oss-security/2010/12/09/4 ([oss-security] 20101209 Re: kernel: Dangerous interaction between clear_child_tid, set_fs(), and kernel oopses) mailing-list

http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052513.html (FEDORA-2010-18983) vendor-advisory

http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html (SUSE-SA:2011:001) vendor-advisory

http://secunia.com/advisories/42932 (42932) third-party-advisory

http://archives.neohapsis.com/archives/fulldisclosure/2010-12/0086.html (20101207 Linux kernel exploit) mailing-list

http://www.vupen.com/english/advisories/2011/0124 (ADV-2011-0124) vdb-entry

http://marc.info/?l=linux-kernel&m=129117048916957&w=2 ([linux-kernel] 20101201 [PATCH v2] do_exit(): Make sure we run with get_fs() == USER_DS.) mailing-list

http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.html (SUSE-SA:2011:007) vendor-advisory

http://www.vupen.com/english/advisories/2010/3321 (ADV-2010-3321) vdb-entry

http://openwall.com/lists/oss-security/2010/12/08/9 ([oss-security] 20101208 Re: kernel: Dangerous interaction between clear_child_tid, set_fs(), and kernel oopses) mailing-list

http://www.vupen.com/english/advisories/2011/0298 (ADV-2011-0298) vdb-entry

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2

http://openwall.com/lists/oss-security/2010/12/09/14 ([oss-security] 20101209 Re: kernel: Dangerous interaction between clear_child_tid, set_fs(), and kernel oopses) mailing-list

http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00007.html (SUSE-SA:2011:005) vendor-advisory

http://code.google.com/p/chromium-os/issues/detail?id=10234

http://www.vupen.com/english/advisories/2011/0375 (ADV-2011-0375) vdb-entry

https://lkml.org/lkml/2010/12/1/543 ([linux-kernel] 20101201 Re: [PATCH v2] do_exit(): Make sure we run with get_fs() == USER_DS.) mailing-list

http://googlechromereleases.blogspot.com/2011/01/chrome-os-beta-channel-update.html

http://www.vupen.com/english/advisories/2011/0012 (ADV-2011-0012) vdb-entry

http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.html (SUSE-SA:2011:008) vendor-advisory

http://openwall.com/lists/oss-security/2010/12/02/4 ([oss-security] 20101202 Re: kernel: Dangerous interaction between clear_child_tid, set_fs(), and kernel oopses) mailing-list

http://www.mandriva.com/security/advisories?name=MDVSA-2011:029 (MDVSA-2011:029) vendor-advisory

http://secunia.com/advisories/42745 (42745) third-party-advisory

http://openwall.com/lists/oss-security/2010/12/02/7 ([oss-security] 20101202 Re: CVE request: kernel: failure to revert address limit override in OOPS error path) mailing-list

http://openwall.com/lists/oss-security/2010/12/08/5 ([oss-security] 20101208 Re: kernel: Dangerous interaction between clear_child_tid, set_fs(), and kernel oopses) mailing-list

http://secunia.com/advisories/43291 (43291) third-party-advisory

http://www.vupen.com/english/advisories/2011/0213 (ADV-2011-0213) vdb-entry

https://bugzilla.redhat.com/show_bug.cgi?id=659567

http://openwall.com/lists/oss-security/2010/12/08/4 ([oss-security] 20101208 Re: kernel: Dangerous interaction between clear_child_tid, set_fs(), and kernel oopses) mailing-list

cve.org CVE-2010-4258

nvd.nist.gov CVE-2010-4258

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