Null pointer dereference in Linux kernel - CVE-2009-2698
Published: June 20, 2024
Vulnerability identifier: #VU92659
CSH Severity: Low
CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2009-2698
CWE-ID: CWE-476
Exploitation vector: Local access
Exploit availability:
Public exploit is available
Vulnerability details
The vulnerability allows a local user to execute arbitrary code.
The vulnerability exists due to null pointer dereference error. A local user can execute arbitrary code.
Affected software
Linux kernel
Ubuntu
linux-source-2.6.15 (Ubuntu package)
linux (Ubuntu package)
Ubuntu
linux-source-2.6.15 (Ubuntu package)
linux (Ubuntu package)
How to mitigate CVE-2009-2698
Install update from vendor's repository.
linux-source-2.6.15 (Ubuntu package) - update to 2.6.15-55.80
linux (Ubuntu package) - addressed in versions 2.6.24-25.63, 2.6.27-15.43, 2.6.28-16.55
linux (Ubuntu package) - addressed in versions 2.6.24-25.63, 2.6.27-15.43, 2.6.28-16.55
Links to Public Exploits and PoC-codes
- Exploit #10038 - Linux Kernel < 2.6.19 (Debian 4) - 'udp_sendmsg' Privilege Escalation (3) (June 20, 2024)
- Exploit #10039 - Linux Kernel < 2.6.19 (x86/x64) - 'udp_sendmsg' Privilege Escalation (2) (June 20, 2024)
- Exploit #10040 - Linux Kernel 2.6 < 2.6.19 (White Box 4 / CentOS 4.4/4.5 / Fedora Core 4/5/6 x86) - 'ip_append_data()' Ring0 Privilege Escalation (1) (June 20, 2024)
External References
- http://rhn.redhat.com/errata/RHSA-2009-1223.html
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19
- http://secunia.com/advisories/36430
- http://rhn.redhat.com/errata/RHSA-2009-1222.html
- https://bugzilla.redhat.com/show_bug.cgi?id=518034
- http://secunia.com/advisories/23073
- http://www.securitytracker.com/id?1022761
- http://www.openwall.com/lists/oss-security/2009/08/25/1
- http://secunia.com/advisories/36510
- http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00008.html
- http://www.securityfocus.com/bid/36108
- http://www.redhat.com/support/errata/RHSA-2009-1233.html
- http://support.avaya.com/css/P8/documents/100067254
- http://www.vupen.com/english/advisories/2009/3316
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://secunia.com/advisories/37471
- http://secunia.com/advisories/37298
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- http://secunia.com/advisories/37105
- http://www.ubuntu.com/usn/USN-852-1
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9142
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8557
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11514
- http://www.securityfocus.com/archive/1/512019/100/0/threaded
- http://www.securityfocus.com/archive/1/507985/100/0/threaded
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1e0c14f49d6b393179f423abbac47f85618d3d46