vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-4090): Linux kernel (OEM) vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:N/C:C/I:C/A:N) | Jan 11, 2022 | Jan 11, 2022 | Aug 18, 2025 |
Severity
7
CVSS
(AV:L/AC:L/Au:N/C:C/I:C/A:N)
Published
Jan 11, 2022
Added
Jan 11, 2022
Modified
Aug 18, 2025
Description
An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw, a local attacker with user privilege may gain access to out-of-bounds memory, leading to a system integrity and confidentiality threat.
Solutions
ubuntu-upgrade-linux-image-5-11-0-1028-azureubuntu-upgrade-linux-image-5-11-0-1028-oracleubuntu-upgrade-linux-image-5-11-0-1029-gcpubuntu-upgrade-linux-image-5-13-0-1010-intelubuntu-upgrade-linux-image-5-13-0-1011-kvmubuntu-upgrade-linux-image-5-13-0-1012-awsubuntu-upgrade-linux-image-5-13-0-1013-gcpubuntu-upgrade-linux-image-5-13-0-1016-oracleubuntu-upgrade-linux-image-5-13-0-1016-raspiubuntu-upgrade-linux-image-5-13-0-1016-raspi-nolpaeubuntu-upgrade-linux-image-5-13-0-1029-oemubuntu-upgrade-linux-image-5-13-0-28-genericubuntu-upgrade-linux-image-5-13-0-28-generic-64kubuntu-upgrade-linux-image-5-13-0-28-generic-lpaeubuntu-upgrade-linux-image-5-13-0-28-lowlatencyubuntu-upgrade-linux-image-5-14-0-1018-oemubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-intelubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04cubuntu-upgrade-linux-image-oem-20-04dubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-20-04
References
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