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
Published · last modified .
CVSS v2 metric
CVSS v2 base score 6.2 (Medium). Vector: AV:L/AC:H/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.027 (85.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 85th percentile — 85.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- 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
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openwall.com/lists/oss-security/2010/12/02/2 (mailing-list, Mailing List, Third Party Advisory)
- secunia.com/advisories/43056 (Third Party Advisory, third-party-advisory)
- lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.html (vendor-advisory, Mailing List, Third Party Advisory)
- secunia.com/advisories/42778 (Third Party Advisory, third-party-advisory)
- openwall.com/lists/oss-security/2010/12/02/3 (mailing-list, Mailing List, Third Party Advisory)
- git.kernel.org/
- secunia.com/advisories/42801 (Third Party Advisory, third-party-advisory)
- lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html (vendor-advisory, Mailing List, Third Party Advisory)
- blog.nelhage.com/2010/12/cve-2010-4258-from-dos-to-privesc/ (Third Party Advisory)
- openwall.com/lists/oss-security/2010/12/09/4 (mailing-list, 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.