{"id":"CVE-2010-4158","url":"https://www.cyber-defence.io/tools/cve/CVE-2010-4158","generatedAt":"2026-10-27T19:51:33.611Z","title":"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…","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.","published":"2010-12-30T19:00:04.000Z","lastModified":"2026-06-16T23:24:14.000Z","status":"Modified","sourceIdentifier":"secalert@redhat.com","cvss":{"version":"2.0","score":2.1,"severity":"LOW","vector":"AV:L/AC:L/Au:N/C:P/I:N/A:N"},"cwe":["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"],"epss":{"score":0.00868,"percentile":0.58491,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2010-11-09","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":34987,"kind":"exploit","title":"Linux Kernel 2.6.x - 'net/core/filter.c' Local Information Disclosure","url":"https://www.exploit-db.com/exploits/34987","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/local/34987.c","file":"exploits/linux/local/34987.c","published":"2010-11-09","added":"2010-11-09","updated":"2016-09-06","author":"Dan Rosenberg","type":"local","platform":"linux","port":null,"verified":true,"codes":["CVE-2010-4158","OSVDB-69190"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://www.securityfocus.com/bid/44758/info"}]},"verdict":{"level":"high","text":"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."},"changes":[],"references":[{"url":"http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=57fe93b374a6b8711995c2d466c502af9f3a08bb","source":"secalert@redhat.com"},{"url":"http://lists.fedoraproject.org/pipermail/package-announce/2010-December/052513.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.grok.org.uk/pipermail/full-disclosure/2010-November/077321.html","tags":["Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2010-12/msg00004.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00000.html","tags":["Mailing List","Third Party Advisory"],"source":"secalert@redhat.com"},{"url":"http://lists.opensuse.org/opensuse-security-announce/2011-01/msg00001.html","tags":["Mailing List","Third 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Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2010-4158","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}