Vulnerability Details : CVE-2017-18193
fs/f2fs/extent_cache.c in the Linux kernel before 4.13 mishandles extent trees, which allows local users to cause a denial of service (BUG) via an application with multiple threads.
Vulnerability category: OverflowDenial of service
Products affected by CVE-2017-18193
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2017-18193
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-2017-18193
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 | |
5.5
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST |
CWE ids for CVE-2017-18193
-
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-2017-18193
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http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=dad48e73127ba10279ea33e6dbc8d3905c4d31c0
kernel/git/torvalds/linux.git - Linux kernel source treePatch
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https://usn.ubuntu.com/3654-1/
USN-3654-1: Linux kernel vulnerabilities | Ubuntu security notices
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https://usn.ubuntu.com/3656-1/
USN-3656-1: Linux kernel (Raspberry Pi 2, Snapdragon) vulnerabilities | Ubuntu security notices
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https://usn.ubuntu.com/3654-2/
USN-3654-2: Linux kernel (Xenial HWE) vulnerabilities | Ubuntu security notices
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https://github.com/torvalds/linux/commit/dad48e73127ba10279ea33e6dbc8d3905c4d31c0
f2fs: fix a bug caused by NULL extent tree · torvalds/linux@dad48e7 · GitHubPatch;Vendor Advisory
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https://www.debian.org/security/2018/dsa-4188
Debian -- Security Information -- DSA-4188-1 linux
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http://www.securityfocus.com/bid/103147
Linux Kernel 'fs/f2fs/extent_cache.c' Local Denial of Service VulnerabilityThird Party Advisory;VDB Entry
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