CVE-2009-2692: debian debian_linux Use of Uninitialized Resource
Vulnerability summary
CVE-2009-2692 is a high (CVSS 7.8) Use of Uninitialized Resource vulnerability in debian debian_linux. EPSS estimates a 14.63% chance of exploitation in the next 30 days, higher than 96.6% of scored vulnerabilities. 12 public exploits are recorded.
Weaponized exploit (exploit-database, 19-07-2012)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 7 · Duplicates 1Timeline
- 14-08-2009PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
14.63%
Chance of exploitation in the next 30 days
Percentile
97%
Versus all other CVEs
30-day change
No change 0.00 pp
From 14.63% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
12 foundExploit Reference (archives.neohapsis.com)
Maturity: unknown
Exploit Reference (blog.cr0.org)
Maturity: unknown
Exploit Reference (securityfocus.com)
Maturity: unknown
Show all 12 exploits
Linux Kernel 2.x (Android) - 'sock_sendpage()' Local Privilege Escalation
Maturity: weaponized
Linux Kernel 2.4.4 < 2.4.37.4 / 2.6.0 < 2.6.30.4 - 'Sendpage' Local Privilege Escalation (Metasploit)
Maturity: weaponized
Linux Kernel 2.4.x/2.6.x (CentOS 4.8/5.3 / RHEL 4.8/5.3 / SuSE 10 SP2/11 / Ubuntu 8.10) (PPC) - 'sock_sendpage()' Local Privilege Escalation
Maturity: weaponized
Linux Kernel 2.4/2.6 (Fedora 11) - 'sock_sendpage()' Local Privilege Escalation (2)
Maturity: weaponized
Linux Kernel 2.4/2.6 (RedHat Linux 9 / Fedora Core 4 < 11 / Whitebox 4 / CentOS 4) - 'sock_sendpage()' Ring0 Privilege Escalation (5)
Maturity: weaponized
Linux Kernel 2.4/2.6 - 'sock_sendpage()' Local Privilege Escalation (3)
Maturity: weaponized
Linux Kernel 2.x (RedHat) - 'sock_sendpage()' Ring0 Privilege Escalation (1)
Maturity: weaponized
Linux Kernel 2.x - 'sock_sendpage()' Local Privilege Escalation (4)
Maturity: weaponized
Linux Kernel Sendpage Local Privilege Escalation
exploit/linux/local/sock_sendpage
Maturity: weaponized
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Redhat5 products
- enterprise_linux_desktop4.0 | 5.0
- enterprise_linux_eus4.8 | 5.3
- enterprise_linux_server4.0 | 5.0
- enterprise_linux_server_aus5.3
- enterprise_linux_workstation4.0 | 5.0
Debian3 products
- linux-2.6< 2.6.26-17lenny2
- linux-2.6.24< 2.6.24-6~etchnhalf.8etch3
- debian_linuxEOL4.0
Linux1 product
- linux_kernel≥ 2.4.4, < 2.4.37.5 | ≥ 2.6.0, < 2.6.30.5
Suse1 product
4 vendors · 10 products
References
39 links- www.debian.org/security/2009/dsa-1865Vendor AdvisoryX Refsource DEBIANMailing ListThird Party Advisory
- www.securityfocus.com/archive/1/512019/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.5X Refsource CONFIRMBroken LinkVendor Advisory
Show all 39 references
- archives.neohapsis.com/archives/fulldisclosure/2009-08/0174.htmlMailing ListX Refsource FULLDISCBroken LinkExploit
- lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.htmlVendor AdvisoryX Refsource SUSEMailing List
- www.securityfocus.com/archive/1/505751/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- www.securityfocus.com/archive/1/507985/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11591VDB EntrySignatureX Refsource OVALBroken Link
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11526VDB EntrySignatureX Refsource OVALBroken Link
- www.mandriva.com/security/advisories?name=MDVSA-2009:233Vendor AdvisoryX Refsource MANDRIVABroken Link
- blog.cr0.org/2009/08/linux-null-pointer-dereference-due-to.htmlX Refsource MISCExploitIssue Tracking
- www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6X Refsource CONFIRMBroken LinkVendor Advisory
- oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8657VDB EntrySignatureX Refsource OVALBroken Link
- www.securityfocus.com/archive/1/505912/100/0/threadedMailing ListX Refsource BUGTRAQBroken LinkThird Party AdvisoryVDB Entry
- www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5X Refsource CONFIRMBroken LinkVendor Advisory