High severity · published Aug 24, 2022
CVE-2021-4204
An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation
7.1
CVSS
1.2%
EPSS
No
On KEV
Description
An out-of-bounds (OOB) memory access flaw was found in the Linux kernel's eBPF due to an Improper Input Validation. This flaw allows a local attacker with a special privilege to crash the system or leak internal information.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 69% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
before 5.8.0; 5.8.0 · source: NVD
DL
Debian Linux · Debian
11.0 · source: NVD
EL
Enterprise Linux · Redhat
9.0 · source: NVD
HF
H300s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410c Firmware · Netapp
All versions, or not specified · source: NVD
HF
H410s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H500s Firmware · Netapp
All versions, or not specified · source: NVD
HF
H700s Firmware · Netapp
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-4204
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-4204
Mitigation
https://access.redhat.com/security/cve/CVE-2021-4204
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=2039178
Third Party Advisory
https://security-tracker.debian.org/tracker/CVE-2021-4204
Third Party Advisory
https://security.netapp.com/advisory/ntap-20221228-0003/
Mailing List
https://www.openwall.com/lists/oss-security/2022/01/11/4
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