SB20240611136 - Red Hat Enterprise Linux 8.6 Extended Update Support update for kernel
Published: June 11, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Processor optimization removal or modification of security-critical code (CVE-ID: CVE-2023-3006)
CWE-ID: CWE-1037 - Processor optimization removal or modification of security-critical code
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allow a local user to gain access to sensitive information.
The vulnerability exists due to a known cache speculation vulnerability (Spectre-BHB) for the new hw AmpereOne. A local user can gain access to sensitive information.
2) Use-after-free (CVE-ID: CVE-2021-47013)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the emac_mac_tx_buf_send() function in drivers/net/ethernet/qualcomm/emac/emac-mac.c. A local user can escalate privileges on the system.
3) Race condition (CVE-ID: CVE-2023-52578)
CWE-ID: CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a data race within the br_handle_frame_finish() function in net/bridge/br_input.c. A local user can exploit the race and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.