SB2024050117 - Red Hat Enterprise Linux 9 update for edk2
Published: May 1, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 8 secuirty vulnerabilities.
1) Buffer overflow (CVE-ID: CVE-2023-45235)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when handling Server ID option from a DHCPv6 proxy Advertise message. A remote attacker on the local network can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
2) Integer overflow (CVE-ID: CVE-2022-36763)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to integer overflow within the Tcg2MeasureGptTable() function when reading untrusted input from the disk. A local user can set up a malicious GPT table to trigger an integer overflow and overwrite code from UEFI applications.
3) Integer overflow (CVE-ID: CVE-2022-36764)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the Tcg2MeasurePeImage() function. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Out-of-bounds read (CVE-ID: CVE-2023-45229)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing the IA_NA or IA_TA option in a DHCPv6 Advertise message. A remote attacker on the local network can trigger an out-of-bounds read error and read contents of memory on the system.
5) Out-of-bounds read (CVE-ID: CVE-2023-45231)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition when processing Neighbor Discovery Redirect message. A remote attacker on the local network can trigger an out-of-bounds read error and read contents of memory on the system.
6) Infinite loop (CVE-ID: CVE-2023-45232)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when parsing unknown options in the Destination Options header of IPv6. A remote attacker can consume all available system resources and cause denial of service conditions.
7) Infinite loop (CVE-ID: CVE-2023-45233)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop when parsing a PadN option in the Destination Options header of IPv6. A remote attacker can consume all available system resources and cause denial of service conditions.
8) Resource management error (CVE-ID: CVE-2023-3446)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the DH_check(), DH_check_ex() and EVP_PKEY_param_check() function when processing a DH key or DH parameters. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.