Back to Database
Status published
Medium
CVE-2021-35477
In the Linux kernel through 5.13.7, an unprivileged BPF program...
Vulnerability Description
In the Linux kernel through 5.13.7, an unprivileged BPF program can obtain sensitive information from kernel memory via a Speculative Store Bypass side-channel attack because a certain preempting store operation does not necessarily occur before a store operation that has an attacker-controlled value.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2021-35477
Credits & Attribution
No credits recorded in the NVD database.
References
- https://www.openwall.com/lists/oss-security/2021/08/01/3
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/?id=f5e81d1117501546b7be050c5fbafa6efd2c722c
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/?id=2039f26f3aca5b0e419b98f65dd36481337b86ee
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JKK6XNRZX5BT5QVYOKGVJ2BHFZAP5EX/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/565ZS55ZFEN62WVRRORT7R63RXW5F4T4/
- https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html
More from linux
View All →CVE-2022-48619
An issue was discovered in drivers/input/input.c in the Linux kernel...
Unknown
0
CVE-2022-48502
An issue was discovered in the Linux kernel before 6.2....
High
7.1
CVE-2022-48425
In the Linux kernel through 6.2.7, fs/ntfs3/inode.c has an invalid...
Unknown
0
CVE-2022-48424
In the Linux kernel before 6.1.3, fs/ntfs3/inode.c does not validate...
Unknown
0
CVE-2022-48423
In the Linux kernel before 6.1.3, fs/ntfs3/record.c does not validate...
Unknown
0
Affected Vendor
linux
View all reports →Affected Software
linux kernel, debian linux, fedora
Vulnerable Versions:
0, 9.0, 33, 34
Timeline
Official Publish:
August 2nd, 2021
Last Modified:
August 4th, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.