Privilege escalation in Linux Kernel
CVE-2010-4258
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.
Vulnerability class: Privilege Escalation
EPSS: 0.027 (84.1th percentile) — read the EPSS interpretation.
Affected products
- Linux Linux_kernel
- Fedoraproject Fedora — versions 13
- Opensuse — versions 11.3, 11.2
- Suse Linux_enterprise_desktop — versions 10, 11
- Suse Linux_enterprise_real_time_extension — versions 11
- Suse Linux_enterprise_server — versions 10, 11, 9
- Suse Linux_enterprise_software_development_kit — versions 10
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_SECUNIA, Third Party Advisory, third-party-advisory)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (x_refsource_SECUNIA, Third Party Advisory, third-party-advisory)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
- secalert@redhat.com (x_refsource_CONFIRM)
- secalert@redhat.com (x_refsource_SECUNIA, Third Party Advisory, third-party-advisory)
- secalert@redhat.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2010-4258?
- CVE-2010-4258 is a vulnerability in Linux Kernel, classified under Improper Privilege Management. Published 2010-12-30.
- Is CVE-2010-4258 known to be exploited?
- 68 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.