CVE-2010-4158
The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to…
Does this matter?
A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is low and EPSS is 0.9%. Treat it as high on anything reachable from the internet.
Description
The sk_run_filter function in net/core/filter.c in the Linux kernel before 2.6.36.2 does not check whether a certain memory location has been initialized before executing a (1) BPF_S_LD_MEM or (2) BPF_S_LDX_MEM instruction, which allows local users to obtain potentially sensitive information from kernel stack memory via a crafted socket filter.
- CVSS 2.0
- 2.1 LOWAV:L/AC:L/Au:N/C:P/I:N/A:N
- EPSS
- 0.87% probability · 58th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 9 November 2010
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- linux/linux kernel · fedoraproject/fedora · opensuse/opensuse · suse/linux enterprise desktop · suse/linux enterprise real time extension · suse/linux enterprise server · suse/linux enterprise software development kit
- Source
- secalert@redhat.com
EPSS 0.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=57fe93b374a6b8711995c2d466c502af9f3a08bb
- http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052513.htmlThird Party Advisory
- http://lists.grok.org.uk/pipermail/full-disclosure/2010-November/077321.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00004.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00000.htmlMailing List, Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2011-02/msg00002.htmlMailing List, Third Party Advisory
- http://secunia.com/advisories/42745Third Party Advisory
- http://secunia.com/advisories/42778Third Party Advisory
- http://secunia.com/advisories/42801Third Party Advisory
- http://secunia.com/advisories/42884Third Party Advisory
- http://secunia.com/advisories/42890Third Party Advisory
- http://secunia.com/advisories/42932Third Party Advisory
- http://secunia.com/advisories/42963Third Party Advisory
- http://secunia.com/advisories/43291Third Party Advisory
- http://secunia.com/advisories/46397Third Party Advisory
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.36.2Broken Link
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:029Third Party Advisory
- http://www.redhat.com/support/errata/RHSA-2010-0958.htmlThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-0007.htmlThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-0017.htmlThird Party Advisory
- http://www.redhat.com/support/errata/RHSA-2011-0162.htmlThird Party Advisory
- http://www.securityfocus.com/archive/1/514705Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/archive/1/514845Exploit, Third Party Advisory, VDB Entry
- http://www.securityfocus.com/archive/1/520102/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/44758Third Party Advisory, VDB Entry
- http://www.spinics.net/lists/netdev/msg146361.htmlMailing List, Patch, Third Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0012.htmlThird Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.