CVE-2011-2695: linux linux_kernel Off-by-one Error
Vulnerability summary
CVE-2011-2695 is a medium (CVSS 4.9) Off-by-one Error vulnerability in linux linux_kernel. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 39.2% of scored vulnerabilities. 1 public exploit is recorded.
Not severe (CVSS 4.9, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 3Timeline
- 28-07-2011PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
Multiple off-by-one errors in the ext4 subsystem in the Linux kernel before 3.0-rc5 allow local users to cause a denial of service (BUG_ON and system crash) by accessing a sparse file in extent format with a write operation involving a block number corresponding to the largest possible 32-bit unsigned integer.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.45% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundExploit Reference (spinics.net)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, no authentication (CVSS vector). Other conditions: not stated in public data.
Ubuntu7 products
- linux< 3.11.0-12.19
- linux-flo< 3.4.0-1.3
- linux-goldfish< 3.4.0-1.7
- linux-grouper< 3.1.10-8.28
- linux-maguro< 3.0.0-3.18
Linux1 product
- linux_kernel< 3.0 | 3.0 | 3.0:rc1 | 3.0:rc2 | 3.0:rc3 | 3.0:rc4
2 vendors · 8 products
References
20 links- git.kernel.orgX Refsource CONFIRM
- bugzilla.redhat.com/show_bug.cgi?id=722557X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- www.spinics.net/lists/linux-ext4/msg25697.htmlMailing ListX Refsource MLISTExploitPatchThird Party Advisory