SB2019092730 - Improper Initialization in Linux kernel
Published: September 27, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019092730
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Initialization (CVE-ID: CVE-2019-16921)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
In the Linux kernel before 4.17, hns_roce_alloc_ucontext in drivers/infiniband/hw/hns/hns_roce_main.c does not initialize the resp data structure, which might allow attackers to obtain sensitive information from kernel stack memory, aka CID-df7e40425813.
Remediation
Install update from vendor's website.