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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2021-35477 Detail

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.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/?id=2039f26f3aca5b0e419b98f65dd36481337b86ee CVE, MITRE Patch  Vendor Advisory 
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/patch/?id=f5e81d1117501546b7be050c5fbafa6efd2c722c CVE, MITRE Patch  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2021/10/msg00010.html CVE, MITRE Mailing List  Third Party Advisory 
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/565ZS55ZFEN62WVRRORT7R63RXW5F4T4/ CVE, MITRE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6JKK6XNRZX5BT5QVYOKGVJ2BHFZAP5EX/ CVE, MITRE
https://www.openwall.com/lists/oss-security/2021/08/01/3 CVE, MITRE Mailing List  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-203 Observable Discrepancy cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

9 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-35477
NVD Published Date:
08/02/2021
NVD Last Modified:
11/21/2024
Source:
MITRE