SB2024042555 - Red Hat Enterprise Linux 9.2 Extended Update Support update for kernel
Published: April 25, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 vulnerabilities.
1) Observable discrepancy (CVE-ID: CVE-2023-6240)
CWE-ID: CWE-203 - Observable discrepancy
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to a timing discrepancy when handling RSA based TLS key exchanges. A remote attacker can perform a Marvin attack and gain access to sensitive information.2) Use-after-free (CVE-ID: CVE-2024-26582)
CWE-ID: CWE-416 - Use After Free
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in net/tls/tls_sw.c during partial reads and async decrypt. A remote attacker can send specially crafted packets to the system and perform a denial of service (DoS) attack.
3) Error handling (CVE-ID: CVE-2024-26584)
CWE-ID: CWE-388 - Error Handling
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to an error when handling backlogging of crypto requests in net/tls/tls_sw.c. A remote attacker can send specially crafted traffic to the system and perform a denial of service attack.
4) Out-of-bounds write (CVE-ID: CVE-2024-26586)
CWE-ID: CWE-787 - Out-of-bounds write
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 boundary error within the mlxsw_sp_acl_tcam_init() function in drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c. A local user can trigger stack corruption and crash the kernel.
Remediation
Install update from vendor's website.