vulnerability
Ubuntu: (Multiple Advisories) (CVE-2021-33624): Linux kernel vulnerabilities
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 5 | (AV:L/AC:M/Au:N/C:C/I:N/A:N) | Jun 23, 2021 | Sep 28, 2021 | Jan 23, 2025 |
Severity
5
CVSS
(AV:L/AC:M/Au:N/C:C/I:N/A:N)
Published
Jun 23, 2021
Added
Sep 28, 2021
Modified
Jan 23, 2025
Description
In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db.
Solution(s)
ubuntu-upgrade-linux-image-5-10-0-1050-oemubuntu-upgrade-linux-image-5-11-0-1017-azureubuntu-upgrade-linux-image-5-11-0-1017-kvmubuntu-upgrade-linux-image-5-11-0-1019-awsubuntu-upgrade-linux-image-5-11-0-1019-oracleubuntu-upgrade-linux-image-5-11-0-1019-raspiubuntu-upgrade-linux-image-5-11-0-1019-raspi-nolpaeubuntu-upgrade-linux-image-5-11-0-1020-gcpubuntu-upgrade-linux-image-5-11-0-37-genericubuntu-upgrade-linux-image-5-11-0-37-generic-64kubuntu-upgrade-linux-image-5-11-0-37-generic-lpaeubuntu-upgrade-linux-image-5-11-0-37-lowlatencyubuntu-upgrade-linux-image-5-4-0-1024-gkeopubuntu-upgrade-linux-image-5-4-0-1044-raspiubuntu-upgrade-linux-image-5-4-0-1047-kvmubuntu-upgrade-linux-image-5-4-0-1053-gcpubuntu-upgrade-linux-image-5-4-0-1053-gkeubuntu-upgrade-linux-image-5-4-0-1055-oracleubuntu-upgrade-linux-image-5-4-0-1057-awsubuntu-upgrade-linux-image-5-4-0-1059-azureubuntu-upgrade-linux-image-5-4-0-87-genericubuntu-upgrade-linux-image-5-4-0-87-generic-lpaeubuntu-upgrade-linux-image-5-4-0-87-lowlatencyubuntu-upgrade-linux-image-5-4-0-88-genericubuntu-upgrade-linux-image-5-4-0-88-generic-lpaeubuntu-upgrade-linux-image-5-4-0-88-lowlatencyubuntu-upgrade-linux-image-awsubuntu-upgrade-linux-image-aws-lts-20-04ubuntu-upgrade-linux-image-azureubuntu-upgrade-linux-image-azure-edgeubuntu-upgrade-linux-image-azure-lts-20-04ubuntu-upgrade-linux-image-gcpubuntu-upgrade-linux-image-gcp-lts-20-04ubuntu-upgrade-linux-image-genericubuntu-upgrade-linux-image-generic-64kubuntu-upgrade-linux-image-generic-64k-hwe-20-04ubuntu-upgrade-linux-image-generic-hwe-18-04ubuntu-upgrade-linux-image-generic-hwe-20-04ubuntu-upgrade-linux-image-generic-lpaeubuntu-upgrade-linux-image-generic-lpae-hwe-18-04ubuntu-upgrade-linux-image-generic-lpae-hwe-20-04ubuntu-upgrade-linux-image-gkeubuntu-upgrade-linux-image-gke-5-4ubuntu-upgrade-linux-image-gkeopubuntu-upgrade-linux-image-gkeop-5-4ubuntu-upgrade-linux-image-kvmubuntu-upgrade-linux-image-lowlatencyubuntu-upgrade-linux-image-lowlatency-hwe-18-04ubuntu-upgrade-linux-image-lowlatency-hwe-20-04ubuntu-upgrade-linux-image-oemubuntu-upgrade-linux-image-oem-20-04ubuntu-upgrade-linux-image-oem-20-04bubuntu-upgrade-linux-image-oem-osp1ubuntu-upgrade-linux-image-oracleubuntu-upgrade-linux-image-oracle-lts-20-04ubuntu-upgrade-linux-image-raspiubuntu-upgrade-linux-image-raspi-hwe-18-04ubuntu-upgrade-linux-image-raspi-nolpaeubuntu-upgrade-linux-image-raspi2ubuntu-upgrade-linux-image-snapdragon-hwe-18-04ubuntu-upgrade-linux-image-virtualubuntu-upgrade-linux-image-virtual-hwe-18-04ubuntu-upgrade-linux-image-virtual-hwe-20-04
References
- CVE-2021-33624
- https://attackerkb.com/topics/CVE-2021-33624
- NVD-CVE-2021-33624
- UBUNTU-USN-5091-1
- UBUNTU-USN-5091-2
- UBUNTU-USN-5091-3
- UBUNTU-USN-5092-1
- UBUNTU-USN-5092-2
- UBUNTU-USN-5092-3
- UBUNTU-USN-5094-1
- UBUNTU-USN-5094-2
- UBUNTU-USN-5096-1
- UBUNTU-USN-5113-1
- UBUNTU-USN-5114-1
- UBUNTU-USN-5115-1
- UBUNTU-USN-5116-1
- UBUNTU-USN-5116-2
- UBUNTU-USN-5117-1
- UBUNTU-USN-5120-1
- UBUNTU-USN-5135-1
- UBUNTU-USN-5136-1
- UBUNTU-USN-5137-1
- UBUNTU-USN-5137-2
- UBUNTU-USN-5163-1
- UBUNTU-USN-5164-1
- UBUNTU-USN-5299-1
- UBUNTU-USN-5343-1
- UBUNTU-USN-5361-1
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