CVE-2009-2692
Published: August 14, 2009Last modified: November 10, 2023
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.
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack Vector | LOCAL |
| Attack complexity | LOW |
| Privileges required | LOW |
| User interaction | NONE |
| Scope | UNCHANGED |
| Confidentiality | HIGH |
| Integrity impact | HIGH |
| Availability impact | HIGH |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Status
| Product | Release | Package | Status |
|---|---|---|---|
| Alpaquita Linux | 23 LTS | linux-lts | Not affected (6.1.50-r0) |
| Stream | linux-lts | Not affected (6.1.50-r0) |
References
- http://archives.neohapsis.com/archives/fulldisclosure/2009-08/0174.html
- http://blog.cr0.org/2009/08/linux-null-pointer-dereference-due-to.html
- http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.4.37.y.git%3Ba=commit%3Bh=c18d0fe535a73b219f960d1af3d0c264555a12e3
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=e694958388c50148389b0e9b9e9e8945cf0f1b98
- http://grsecurity.net/~spender/wunderbar_emporium.tgz
- http://lists.opensuse.org/opensuse-security-announce/2009-09/msg00001.html
- http://rhn.redhat.com/errata/RHSA-2009-1222.html
- http://rhn.redhat.com/errata/RHSA-2009-1223.html
- http://secunia.com/advisories/36278
- http://secunia.com/advisories/36289
- http://secunia.com/advisories/36327
- http://secunia.com/advisories/36430
- http://secunia.com/advisories/37298
- http://secunia.com/advisories/37471
- http://support.avaya.com/css/P8/documents/100067254
- http://wiki.rpath.com/wiki/Advisories:rPSA-2009-0121
- http://www.debian.org/security/2009/dsa-1865
- http://www.exploit-db.com/exploits/19933
- http://www.exploit-db.com/exploits/9477
- http://www.kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.37.5
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30.5
- http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.31-rc6
- http://www.mandriva.com/security/advisories?name=MDVSA-2009:233
- http://www.openwall.com/lists/oss-security/2009/08/14/1
- http://www.redhat.com/support/errata/RHSA-2009-1233.html
- http://www.securityfocus.com/archive/1/505751/100/0/threaded
- http://www.securityfocus.com/archive/1/505912/100/0/threaded
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://www.securityfocus.com/archive/1/512019/100/0/threaded
- http://www.securityfocus.com/bid/36038
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/2272
- http://www.vupen.com/english/advisories/2009/3316
- http://zenthought.org/content/file/android-root-2009-08-16-source
- https://bugzilla.redhat.com/show_bug.cgi?id=516949
- https://issues.rpath.com/browse/RPL-3103
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11526
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11591
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8657