Vulnerability Details : CVE-2011-4086

The journal_unmap_buffer function in fs/jbd2/transaction.c in the Linux kernel before 3.3.1 does not properly handle the _Delay and _Unwritten buffer head states, which allows local users to cause a denial of service (system crash) by leveraging the presence of an ext4 filesystem that was mounted with a journal.
Published 2012-07-03 16:40:31
Updated 2023-02-13 01:21:17
Source Red Hat, Inc.
View at NVD,   CVE.org
Vulnerability category: OverflowDenial of service

Products affected by CVE-2011-4086

Threat overview for CVE-2011-4086

Top countries where our scanners detected CVE-2011-4086
Top open port discovered on systems with this issue 49152
IPs affected by CVE-2011-4086 139,459
Threat actors abusing to this issue? Yes
Find out if you* are affected by CVE-2011-4086!
*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2011-4086

EPSS FAQ
0.04%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2011-4086

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
4.9
 MEDIUM AV:L/AC:L/Au:N/C:N/I:N/A:C
3.9
6.9
 NIST

CWE ids for CVE-2011-4086

  • The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2011-4086

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