CVE-2010-2943
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data exposure, data tampering.
- Exploit odds
- 17.0% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 17.0% in the next 30 days (EPSS).
- Severity: 8.1 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 17.0% · EPSS, next 30 days
- Weakness
- CWE-200 · Information exposure
- Record status
- Modified
Affected
- 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
Attack profile CVSS 3.1 · 8.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2010-2943.md and follow it. Check whether this project is affected by CVE-2010-2943. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- http://www.openwall.com/lists/oss-security/2010/08/18/2
- http://www.openwall.com/lists/oss-security/2010/08/19/5
- https://bugzilla.redhat.com/show_bug.cgi?id=624923
- http://www.openwall.com/lists/oss-security/2010/08/18/2
- http://www.openwall.com/lists/oss-security/2010/08/19/5
- https://bugzilla.redhat.com/show_bug.cgi?id=624923
References
- http://article.gmane.org/gmane.comp.file-systems.xfs.general/33767
- http://article.gmane.org/gmane.comp.file-systems.xfs.general/33768
- http://article.gmane.org/gmane.comp.file-systems.xfs.general/33769
- http://article.gmane.org/gmane.comp.file-systems.xfs.general/33771
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1920779e67cbf5ea8afef317777c5bf2b8096188
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7124fe0a5b619d65b739477b3b55a20bf805b06d
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7b6259e7a83647948fa33a736cc832310c8d85aa
- http://oss.sgi.com/archives/xfs/2010-06/msg00191.html
- http://oss.sgi.com/archives/xfs/2010-06/msg00198.html
- http://secunia.com/advisories/42758
- http://secunia.com/advisories/43161
- http://secunia.com/advisories/46397
- http://support.avaya.com/css/P8/documents/100113326
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- http://www.openwall.com/lists/oss-security/2010/08/18/2
- http://www.openwall.com/lists/oss-security/2010/08/19/5
- http://www.redhat.com/support/errata/RHSA-2010-0723.html
- http://www.securityfocus.com/archive/1/520102/100/0/threaded
- http://www.securityfocus.com/bid/42527
- http://www.ubuntu.com/usn/USN-1041-1
- http://www.ubuntu.com/usn/USN-1057-1
- http://www.vmware.com/security/advisories/VMSA-2011-0012.html
- http://www.vupen.com/english/advisories/2011/0070
- http://www.vupen.com/english/advisories/2011/0280
- https://bugzilla.redhat.com/show_bug.cgi?id=624923