Vulnerability CVE-2008-2365
Published: 2008-06-30   Modified: 2012-02-12

Description:
Race condition in the ptrace and utrace support in the Linux kernel 2.6.9 through 2.6.25, as used in Red Hat Enterprise Linux (RHEL) 4, allows local users to cause a denial of service (oops) via a long series of PTRACE_ATTACH ptrace calls to another user's process that trigger a conflict between utrace_detach and report_quiescent, related to "late ptrace_may_attach() check" and "race around &dead_engine_ops setting," a different vulnerability than CVE-2007-0771 and CVE-2008-1514. NOTE: this issue might only affect kernel versions before 2.6.16.x.

See advisories in our WLB2 database:
Topic
Author
Date
Low
Move utrace into task_struct
Alexey Dobriyan
02.07.2008

Type:

CWE-362

CVSS2 => (AV:L/AC:M/Au:N/C:N/I:N/A:C)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.7/10
6.9/10
3.4/10
Exploit range
Attack complexity
Authentication
Local
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Redhat -> Enterprise linux 
Redhat -> Enterprise linux desktop 
Linux -> Kernel 
Linux -> Linux kernel 

 References:
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.25.y.git;a=commit;h=5ecfbae093f0c37311e89b29bfc0c9d586eace87
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.25.y.git;a=commit;h=f358166a9405e4f1d8e50d8f415c26d95505b6de
http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.25.y.git;a=commit;h=f5b40e363ad6041a96e3da32281d8faa191597b9
http://marc.info/?l=linux-kernel&m=117863520707703&w=2
http://rhn.redhat.com/errata/RHSA-2008-0508.html
http://securityreason.com/securityalert/3965
http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tests/tests/late-ptrace-may-attach-check.c?cvsroot=systemtap
http://www.openwall.com/lists/oss-security/2008/06/26/1
http://www.openwall.com/lists/oss-security/2008/07/14/1
http://www.securityfocus.com/bid/29945
http://www.securitytracker.com/id?1020362
http://www.ubuntu.com/usn/usn-625-1
https://bugzilla.redhat.com/show_bug.cgi?id=449359
https://exchange.xforce.ibmcloud.com/vulnerabilities/43567
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10749
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