CVE-2021-34556

CVSS v3 Score
5.5
Medium
CVSS v2 Score
2.1
Low

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 the protection mechanism neglects the possibility of uninitialized memory locations on the BPF stack.

CVSS:5.5(Medium)

The dsa_sign_setup function in crypto/dsa/dsa_ossl.c in OpenSSL through 1.0.2h does not properly ensure the use of constant-time operations, which makes it easier for local users to discover a DSA pri...

CVSS:5.5(Medium)

Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of in...

CVSS:5.5(Medium)

Side channel issue in QTEE due to usage of non-time-constant comparison function such as memcmp or strcmp in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivity, Snapdragon Consumer Electroni...

CVSS:5.5(Medium)

Due to the use of non-time-constant comparison functions there is issue in timing side channels which can be used as a potential side channel for SUI corruption in Snapdragon Auto, Snapdragon Compute,...

CVSS:5.5(Medium)

Using non-time-constant functions like memcmp to compare sensitive data can lead to information leakage through timing side channel issue. in Snapdragon Auto, Snapdragon Compute, Snapdragon Connectivi...

CVSS:5.5(Medium)

A flaw was found in the fix for CVE-2019-11135, in the Linux upstream kernel versions before 5.5 where, the way Intel CPUs handle speculative execution of instructions when a TSX Asynchronous Abort (T...