CVE-2009-2698
CVE-2009-2698 is a high-severity vulnerability in Vmware Vcenter Server with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-476.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- CVSS v2: 7.2
- EPSS exploit prediction: 7% (94th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-476
- Affected product: Vmware Vcenter Server
- Published:
- Last modified:
Description
The udp_sendmsg function in the UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c in the Linux kernel before 2.6.19 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving the MSG_MORE flag and a UDP socket.
Frequently asked questions
- What is CVE-2009-2698?
- The udp_sendmsg function in the UDP implementation in (1) net/ipv4/udp.c and (2) net/ipv6/udp.c in the Linux kernel before 2.6.19 allows local users to gain privileges or cause a denial of service (NULL pointer dereference and system crash) via vectors involving the MSG_MORE flag and a UDP socket.
- How severe is CVE-2009-2698?
- CVE-2009-2698 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2009-2698 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2009-2698?
- CVE-2009-2698 primarily affects Vmware Vcenter Server. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2009-2698?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2009-2698 published?
- CVE-2009-2698 was published on 2009-08-27 and last updated on 2026-06-16.
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1e0c14f49d6b393179f423abbac47f85618d3d46
- http://lists.opensuse.org/opensuse-security-announce/2009-08/msg00008.html
- http://rhn.redhat.com/errata/RHSA-2009-1222.html
- http://rhn.redhat.com/errata/RHSA-2009-1223.html
- http://secunia.com/advisories/23073
- http://secunia.com/advisories/36430
- http://secunia.com/advisories/36510
- http://secunia.com/advisories/37105
- http://secunia.com/advisories/37298
- http://secunia.com/advisories/37471
- http://support.avaya.com/css/P8/documents/100067254
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.19
- http://www.mandriva.com/security/advisories?name=MDVSA-2011:051
- http://www.openwall.com/lists/oss-security/2009/08/25/1
- http://www.redhat.com/support/errata/RHSA-2009-1233.html
- 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/36108
- http://www.securitytracker.com/id?1022761
- http://www.ubuntu.com/usn/USN-852-1
- http://www.vmware.com/security/advisories/VMSA-2009-0016.html
- http://www.vupen.com/english/advisories/2009/3316
- https://bugzilla.redhat.com/show_bug.cgi?id=518034
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11514
- 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%3A9142
Affected products (20)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:8.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:8.10:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:9.04:*:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_desktop:10:sp2:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:9:*:*:*:*:*:*:*
- cpe:2.3:o:suse:linux_enterprise_server:10:sp2:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:10:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:4.8:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_eus:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server:5.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_server_aus:5.3:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_workstation:5.0:*:*:*:*:*:*:*
- cpe:2.3:a:vmware:vcenter_server:4.0:-:*:*:*:*:*:*
- cpe:2.3:o:vmware:esxi:4.0:*:*:*:*:*:*:*
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