High severity · published Aug 8, 2021
CVE-2021-38202
fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace…
7.5
CVSS
3.2%
EPSS
No
On KEV
Description
fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.2% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 5.13.4 · source: NVD
ES
Element Software · Netapp
All versions, or not specified · source: NVD
HB
Hci Bootstrap OS · Netapp
All versions, or not specified · source: NVD
HM
Hci Management Node · Netapp
All versions, or not specified · source: NVD
SO
Solidfire · Netapp
All versions, or not specified · source: NVD
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1.1 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-38202
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-38202
Mailing List
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4
Patch
https://github.com/torvalds/linux/commit/7b08cf62b1239a4322427d677ea9363f0ab677c6
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210902-0010/
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-265688.html
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