CVE-2010-2943

Exp

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.

Published: 2010-09-30 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2010-2943 is rated High Exploit Risk (79.5/100): CVSS High severity, with medium exploitation likelihood (EPSS 3.82%). 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.42% over the last day, indicating growing attacker interest. Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2010-2943

EDB-ID Source Kind Published Link
15155 exploit_db edb 2010-09-29 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2010-2943

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-21 2.40% 3.82% +1.42%
2 2025-06-09 2.58% 2.40% -0.18%
3 2025-06-08 — 2.58% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2010-2943

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.1 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 5.2 [email protected]
6.4 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 4.9 [email protected]

Weakness enumeration for CVE-2010-2943

OS Trackers for CVE-2010-2943

vendor priority summary link
redhat medium — https://access.redhat.com/security/cve/CVE-2010-2943
ubuntu medium CVE-2010-2943 medium priority: Ubuntu including 7 source packages (linux, linux-ec2, …), 53 status rows across 8 suites (dapper, hardy, jaunty, karmic, lucid, maverick, natty, upstream): DNE 28, released 19, ignored 3, not-affected 3. https://ubuntu.com/security/CVE-2010-2943

Affected software / configurations for CVE-2010-2943

Vendor Product Version Raw CPE
linux linux_kernel < 2.6.35 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
canonical ubuntu_linux 6.06 cpe:2.3:o:canonical:ubuntu_linux:6.06:*:*:*:-:*:*:*
canonical ubuntu_linux 9.10 cpe:2.3:o:canonical:ubuntu_linux:9.10:*:*:*:*:*:*:*
canonical ubuntu_linux 10.04 cpe:2.3:o:canonical:ubuntu_linux:10.04:*:*:*:-:*:*:*
canonical ubuntu_linux 10.10 cpe:2.3:o:canonical:ubuntu_linux:10.10:*:*:*:*:*:*:*
vmware esx 4.0 cpe:2.3:o:vmware:esx:4.0:*:*:*:*:*:*:*
vmware esx 4.1 cpe:2.3:o:vmware:esx:4.1:*:*:*:*:*:*:*
avaya aura_communication_manager 5.2 cpe:2.3:a:avaya:aura_communication_manager:5.2:*:*:*:*:*:*:*
avaya aura_presence_services 6.0 cpe:2.3:a:avaya:aura_presence_services:6.0:*:*:*:*:*:*:*
avaya aura_presence_services 6.1 cpe:2.3:a:avaya:aura_presence_services:6.1:*:*:*:*:*:*:*
avaya aura_presence_services 6.1.1 cpe:2.3:a:avaya:aura_presence_services:6.1.1:*:*:*:*:*:*:*
avaya aura_session_manager 1.1 cpe:2.3:a:avaya:aura_session_manager:1.1:*:*:*:*:*:*:*
avaya aura_session_manager 5.2 cpe:2.3:a:avaya:aura_session_manager:5.2:*:*:*:*:*:*:*
avaya aura_session_manager 6.0 cpe:2.3:a:avaya:aura_session_manager:6.0:*:*:*:*:*:*:*
avaya aura_system_manager 5.2 cpe:2.3:a:avaya:aura_system_manager:5.2:*:*:*:*:*:*:*
avaya aura_system_manager 6.0 cpe:2.3:a:avaya:aura_system_manager:6.0:*:*:*:*:*:*:*
avaya aura_system_manager 6.1 cpe:2.3:a:avaya:aura_system_manager:6.1:*:*:*:*:*:*:*
avaya aura_system_manager 6.1.1 cpe:2.3:a:avaya:aura_system_manager:6.1.1:*:*:*:*:*:*:*
avaya aura_system_platform 1.1 cpe:2.3:a:avaya:aura_system_platform:1.1:*:*:*:*:*:*:*
avaya aura_system_platform 6.0 cpe:2.3:a:avaya:aura_system_platform:6.0:-:*:*:*:*:*:*
avaya aura_system_platform 6.0 cpe:2.3:a:avaya:aura_system_platform:6.0:sp1:*:*:*:*:*:*
avaya aura_voice_portal 5.0 cpe:2.3:a:avaya:aura_voice_portal:5.0:*:*:*:*:*:*:*
avaya aura_voice_portal 5.1 cpe:2.3:a:avaya:aura_voice_portal:5.1:-:*:*:*:*:*:*
avaya aura_voice_portal 5.1 cpe:2.3:a:avaya:aura_voice_portal:5.1:sp1:*:*:*:*:*:*
avaya iq 5.0 cpe:2.3:a:avaya:iq:5.0:*:*:*:*:*:*:*
avaya iq 5.1 cpe:2.3:a:avaya:iq:5.1:*:*:*:*:*:*:*

References for CVE-2010-2943

URL Tags
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33767 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33768 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33769 Broken Link
http://article.gmane.org/gmane.comp.file-systems.xfs.general/33771 Broken Link
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 Broken Link
http://oss.sgi.com/archives/xfs/2010-06/msg00198.html Broken Link
http://secunia.com/advisories/42758 Broken Link
http://secunia.com/advisories/43161 Broken Link
http://secunia.com/advisories/46397 Broken Link
http://support.avaya.com/css/P8/documents/100113326 Third Party Advisory
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35 Broken Link
http://www.openwall.com/lists/oss-security/2010/08/18/2 Mailing List Patch Third Party Advisory
http://www.openwall.com/lists/oss-security/2010/08/19/5 Mailing List Patch Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2010-0723.html Broken Link
http://www.securityfocus.com/archive/1/520102/100/0/threaded Third Party Advisory VDB Entry
http://www.securityfocus.com/bid/42527 Exploit Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-1041-1 Third Party Advisory
http://www.ubuntu.com/usn/USN-1057-1 Third Party Advisory
http://www.vmware.com/security/advisories/VMSA-2011-0012.html Third Party Advisory
http://www.vupen.com/english/advisories/2011/0070 Broken Link
http://www.vupen.com/english/advisories/2011/0280 Broken Link
https://bugzilla.redhat.com/show_bug.cgi?id=624923 Issue Tracking Patch Third Party Advisory
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