The xfs implementation in the Linux kernel before 2.6.35 does not look up inode allocation btrees before reading inode buffers, which allows
Noroxi assessment
Priority: Monitor (action score 37/100)
- Public proof-of-concept code exists (Exploit-DB); there is no record of exploitation in the wild.
- Probability of exploitation in the next 30 days: 17% (FIRST EPSS); higher than 97% of all records.
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- Fixed version: kernel (Red Hat:enterprise_linux:5::client) 0:2.6.18-194.17.1.el5; kernel-debug (Red Hat:enterprise_linux:5::client) 0:2.6.18-194.17.1.el5; kernel-debug-debuginfo (Red Hat:enterprise_linux:5::client) 0:2.6.18-194.17.1.el5.
Low priority for now. Upgrade to kernel (Red Hat:enterprise_linux:5::client) 0:2.6.18-194.17.1.el5; kernel-debug (Red Hat:enterprise_linux:5::client) 0:2.6.18-194.17.1.el5; kernel-debug-debuginfo (Red Hat:enterprise_linux:5::client) 0:2.6.18-194.17.1.el5 or later.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
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
- Sep 30, 2010
- Updated
- Jun 16, 2026
- EPSS
- 17.0% · 97th percentile
- CWE
- CWE-200
Report tools
Action score
37
Monitor
Low priority for now.
- CVSS
- 32 / 40 · 8.1 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 5 / 30 · 17.0%
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- Proof of concept exists, no weaponized module
- A fix has been released
If any of these changes, we'll tell you in the daily email digest.
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Noroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
| Vendor | Product | CPE |
|---|---|---|
| linux | linux kernel | cpe:2.3:o:linux:linux_kernel |
| canonical | ubuntu linux | cpe:2.3:o:canonical:ubuntu_linux |
| vmware | esx | cpe:2.3:o:vmware:esx |
| avaya | aura communication manager | cpe:2.3:a:avaya:aura_communication_manager |
| avaya | aura presence services | cpe:2.3:a:avaya:aura_presence_services |
| avaya | aura session manager | cpe:2.3:a:avaya:aura_session_manager |
| avaya | aura system manager | cpe:2.3:a:avaya:aura_system_manager |
| avaya | aura system platform | cpe:2.3:a:avaya:aura_system_platform |
| avaya | aura voice portal | cpe:2.3:a:avaya:aura_voice_portal |
| avaya | iq | cpe:2.3:a:avaya:iq |
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- avaya aura communication manager5.2
- avaya aura presence services6.0
- avaya aura presence services6.1
- avaya aura presence services6.1.1
- avaya aura session manager1.1
- avaya aura session manager5.2
- avaya aura session manager6.0
- avaya aura system manager5.2
- avaya aura system manager6.0
- avaya aura system manager6.1
- avaya aura system manager6.1.1
- avaya aura system platform1.1
- avaya aura system platform6.0
- avaya aura voice portal5.0
- avaya aura voice portal5.1
- avaya iq5.0
- avaya iq5.1
- canonical ubuntu linux10.04
- canonical ubuntu linux10.10
- canonical ubuntu linux6.06
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Red Hat:enterprise_linux:5::client | kernel | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debug | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debug-debuginfo | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debug-devel | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debuginfo | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-debuginfo-common | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-devel | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-doc | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-headers | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-PAE | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-PAE-debuginfo | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-PAE-devel | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-xen | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-xen-debuginfo | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::client | kernel-xen-devel | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::server | kernel-kdump | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::server | kernel-kdump-debuginfo | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
| Red Hat:enterprise_linux:5::server | kernel-kdump-devel | before 0:2.6.18-194.17.1.el5 | 0:2.6.18-194.17.1.el5 |
Same product
linux: all recordsOther highest-scoring records for the same primary product.
- CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe KEV89Now
- CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV85Now
- CVE-2016-5195Race condition in mm/gup.c in the Linux kernel 2.x through 4.x before 4.8.3 allows local users to gain privileges by leveraging incorrect haKEV83Now
Published before and after this one in the same product
- ← EarlierCVE-2010-2537Sep 30, 2010 · The btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the Linux kernel before 2.6.35 allows local users to overwrite an append-only file via28Monitor
- ← EarlierCVE-2010-2538Sep 30, 2010 · Integer overflow in the btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the Linux kernel before 2.6.35 might allow local users to obtain s22Monitor
- Later →CVE-2010-3079Sep 30, 2010 · kernel/trace/ftrace.c in the Linux kernel before 2.6.35.5, when debugfs is enabled, does not properly handle interaction between mutex posse22Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| red hat:kernel | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debug | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debug-debuginfo | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debug-devel | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debuginfo | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-debuginfo-common | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-devel | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-doc | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-headers | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-PAE | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-PAE-debuginfo | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
| red hat:kernel-PAE-devel | 0:2.6.18-194.17.1.el5 · Red Hat:enterprise_linux:5::client | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | local | 2010-09-29 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- First PoC-1 d
- Published
- TodayOct 20, 2026+5864 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- none
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- None
Weakness class (CWE)
CWE-200 · Exposure of Sensitive Information to an Unauthorized ActorCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
nvd-primary
Root cause
The extension requests broader permissions than its function needs and sends the data it collects out for purposes beyond its stated function.
The bug in code
The whole CWE-200 classA representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.
Vulnerable
{ "permissions": ["tabs", "<all_urls>"], "background": { "service_worker": "analytics.js" }}Fixed
{ "permissions": ["activeTab"], "host_permissions": ["https://yildiz.example/*"]}Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
- ExcavationCAPEC-116likelihood: High · Medium
- Subverting Environment Variable ValuesCAPEC-13likelihood: High · Very High
- FootprintingCAPEC-169likelihood: High · Very Low
- Exploiting Trust in ClientCAPEC-22likelihood: High · High
- FingerprintingCAPEC-224likelihood: High · Very Low
- ICMP Echo Request PingCAPEC-285likelihood: Medium · Low
- TCP SYN ScanCAPEC-287Low
- Enumerate Mail Exchange (MX) RecordsCAPEC-290Low
ATT&CK techniques
- System Service DiscoveryT1007
- System Network Configuration DiscoveryT1016
- Remote System DiscoveryT1018
- System Owner/User DiscoveryT1033
- Masquerading: Match Legitimate Name or LocationT1036.005
- Network Service ScanningT1046
- System Network Connections DiscoveryT1049
- Process DiscoveryT1057
- Permission Groups DiscoveryT1069
- System Information DiscoveryT1082
- File and Directory DiscoveryT1083
- Account DiscoveryT1087
- Multi-Factor Authentication InterceptionT1111
- Peripheral Device DiscoveryT1120
- System Time DiscoveryT1124
- Access Token Manipulation:Token Impersonation/TheftT1134.001
Change log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
Show all references (19 more)Show less
- article.gmane.org/gmane.comp.file-systems.xfs.general/33767
- article.gmane.org/gmane.comp.file-systems.xfs.general/33768
- article.gmane.org/gmane.comp.file-systems.xfs.general/33769
- article.gmane.org/gmane.comp.file-systems.xfs.general/33771
- git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=1920779e67cbf5ea8afef317777c5bf2b8096188
- git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7124fe0a5b619d65b739477b3b55a20bf805b06d
- git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7b6259e7a83647948fa33a736cc832310c8d85aa
- oss.sgi.com/archives/xfs/2010-06/msg00191.html
- oss.sgi.com/archives/xfs/2010-06/msg00198.html
- secunia.com/advisories/42758
- secunia.com/advisories/43161
- support.avaya.com/css/P8/documents/100113326
- www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35
- www.openwall.com/lists/oss-security/2010/08/18/2
- www.openwall.com/lists/oss-security/2010/08/19/5
- www.redhat.com/support/errata/RHSA-2010-0723.html
- www.securityfocus.com/archive/1/520102/100/0/threaded
- www.ubuntu.com/usn/USN-1041-1
- www.ubuntu.com/usn/USN-1057-1
Vendor advisories and official records. Exploit/PoC links are deliberately left out.