SB2024041226 - Multiple vulnerabilities in IBM AIX and IBM VIOS
Published: April 12, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Resource exhaustion (CVE-ID: CVE-2023-52425)
CWE-ID: CWE-400 - Resource exhaustion
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 application does not properly control consumption of internal resources when parsing large tokens. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
2) XML Entity Expansion (CVE-ID: CVE-2023-52426)
CWE-ID: CWE-776 - Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')
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 recursive XML Entity Expansion if XML_DTD is undefined at compile time. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.
3) UNIX symbolic link following (CVE-ID: CVE-2023-6597)
CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to delete arbitrary files on the system.
The vulnerability exists due to a symlink following issue during cleanup when handling temporary files. A local user can create a specially crafted symbolic link to a critical file on the system and delete it.
Remediation
Install update from vendor's website.