CVE-2010-2943
HIGHCVSS 8.1/10EPSS 17.01%
Last modified
CVE-2010-2943 is a high-severity vulnerability rated 8.1/10 on the CVSS scale. The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.. EPSS estimates a 17.01% chance of exploitation in the next 30 days.
Description
The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 2.6.35 |
| Canonical | Ubuntu Linux | 6.06 |
| Canonical | Ubuntu Linux | 9.10 |
| Canonical | Ubuntu Linux | 10.04 |
| Canonical | Ubuntu Linux | 10.10 |
| Vmware | Esx | 4.0 |
| Vmware | Esx | 4.1 |
| Avaya | Aura Communication Manager | 5.2 |
| Avaya | Aura Presence Services | 6.0 |
| Avaya | Aura Presence Services | 6.1 |
| Avaya | Aura Presence Services | 6.1.1 |
| Avaya | Aura Session Manager | 1.1 |
| Avaya | Aura Session Manager | 5.2 |
| Avaya | Aura Session Manager | 6.0 |
| Avaya | Aura System Manager | 5.2 |
| Avaya | Aura System Manager | 6.0 |
| Avaya | Aura System Manager | 6.1 |
| Avaya | Aura System Manager | 6.1.1 |
| Avaya | Aura System Platform | 1.1 |
| Avaya | Aura System Platform | 6.0 |
| Avaya | Aura Voice Portal | 5.0 |
| Avaya | Aura Voice Portal | 5.1 |
| Avaya | Iq | 5.0 |
| Avaya | Iq | 5.1 |
References
- http://secunia.com/advisories/42758Broken Link
- http://secunia.com/advisories/43161Broken Link
- http://secunia.com/advisories/46397Broken Link
- http://support.avaya.com/css/P8/documents/100113326Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/08/18/2Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/08/19/5Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/archive/1/520102/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/42527Exploit, Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1041-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1057-1Third Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0012.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=624923Issue Tracking, Patch, Third Party Advisory
- http://secunia.com/advisories/42758Broken Link
- http://secunia.com/advisories/43161Broken Link
- http://secunia.com/advisories/46397Broken Link
- http://support.avaya.com/css/P8/documents/100113326Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/08/18/2Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2010/08/19/5Mailing List, Patch, Third Party Advisory
- http://www.securityfocus.com/archive/1/520102/100/0/threadedThird Party Advisory, VDB Entry
- http://www.securityfocus.com/bid/42527Exploit, Third Party Advisory, VDB Entry
- http://www.ubuntu.com/usn/USN-1041-1Third Party Advisory
- http://www.ubuntu.com/usn/USN-1057-1Third Party Advisory
- http://www.vmware.com/security/advisories/VMSA-2011-0012.htmlThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=624923Issue Tracking, Patch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2010-2943?
The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows remote authenticated users to read unlinked files, or read or overwrite disk blocks that are currently assigned to an active file but were previously assigned to an unlinked file, by accessing a stale NFS filehandle.
How severe is CVE-2010-2943?
CVE-2010-2943 has a CVSS score of 8.1/10 (HIGH severity). The EPSS model estimates a 17.01% probability of exploitation in the next 30 days.
How do I fix CVE-2010-2943?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2010
- CVE-2010-2937The ReadMetaFromId3v2 function in taglib.cpp in the TagLib p…
- CVE-2010-2938arch/x86/hvm/vmx/vmcs.c in the virtual-machine control struc…
- CVE-2010-2939Double free vulnerability in the ssl3_get_key_exchange funct…
- CVE-2010-2940The auth_send function in providers/ldap/ldap_auth.c in Syst…
- CVE-2010-2941ipp.c in cupsd in CUPS 1.4.4 and earlier does not properly a…9.8
- CVE-2010-2942The actions implementation in the network queueing functiona…5.5
- CVE-2010-2944The authenticate function in LDAPUserFolder/LDAPUserFolder.p…
- CVE-2010-2945The default configuration of SLiM before 1.3.2 places ./ (do…
- CVE-2010-2946fs/jfs/xattr.c in the Linux kernel before 2.6.35.2 does not …
- CVE-2010-2947Heap-based buffer overflow in the HX_split function in strin…
- CVE-2010-2948Stack-based buffer overflow in the bgp_route_refresh_receive…
- CVE-2010-2949bgpd in Quagga before 0.99.17 does not properly parse AS pat…
Are you affected by CVE-2010-2943?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST