Vulnerability Details : CVE-2011-3638
fs/ext4/extents.c in the Linux kernel before 3.0 does not mark a modified extent as dirty in certain cases of extent splitting, which allows local users to cause a denial of service (system crash) via vectors involving ext4 umount and mount operations.
Vulnerability category: Denial of service
Products affected by CVE-2011-3638
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Threat overview for CVE-2011-3638
Top countries where our scanners detected CVE-2011-3638
Top open port discovered on systems with this issue
49152
IPs affected by CVE-2011-3638 67
Threat actors abusing to this issue?
Yes
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Exploit prediction scoring system (EPSS) score for CVE-2011-3638
0.15%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 33 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2011-3638
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
4.0
|
MEDIUM | AV:L/AC:H/Au:N/C:N/I:N/A:C |
1.9
|
6.9
|
NIST |
References for CVE-2011-3638
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https://github.com/torvalds/linux/commit/667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3
ext4: reimplement convert and split_unwritten · torvalds/linux@667eff3 · GitHubPatch;Third Party Advisory
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http://www.openwall.com/lists/oss-security/2011/10/24/2
oss-security - Re: CVE Request -- kernel: ext4: ext4_ext_insert_extent() kernel oopsMailing List;Third Party Advisory
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http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=667eff35a1f56fa74ce98a0c7c29a40adc1ba4e3
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https://bugzilla.redhat.com/show_bug.cgi?id=747942
747942 – (CVE-2011-3638) CVE-2011-3638 kernel: ext4: ext4_ext_insert_extent() kernel oopsIssue Tracking;Third Party Advisory
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http://ftp.osuosl.org/pub/linux/kernel/v3.0/ChangeLog-3.0
404 Not FoundBroken Link
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