SB20240806136 - Amazon Linux AMI update for php8.1

Description

This security bulletin contains information about 6 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2022-31627)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the finfo_buffer() PHP function. A remote attacker can pass an overly long string to the script that allocates the buffer, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Infinite loop (CVE-ID: CVE-2022-31628)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop within the phar uncompressor code when processing "quines" gzip files. A remote attacker can pass a specially crafted archive to the application, consume all available system resources and cause denial of service conditions.

3) Security features bypass (CVE-ID: CVE-2022-31629)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to the way PHP handles HTTP variable names. A remote attacker can set a standard insecure cookie in the victim's browser which is treated as a `__Host-` or `__Secure-` cookie by PHP applications.

4) Out-of-bounds read (CVE-ID: CVE-2022-31630)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the imageloadfont() function. A remote attacker can pass specially crafted data to the web application, trigger an out-of-bounds read error and read contents of memory on the system.

5) Integer overflow (CVE-ID: CVE-2022-31631)

The vulnerability allows a remote attacker to bypass implemented security restrictions.

The vulnerability exists due to integer overflow when processing untrusted input within the PDO::quote() in PDO_SQLite. A remote attacker can pass a specially crafted input to the application that after being processed by the affected PDO::quote() method will return a quoted string, which can result in a SQL injection.

6) Integer overflow (CVE-ID: CVE-2022-37454)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to integer overflow within the Keccak XKCP SHA-3 reference implementation. A remote attacker can pass specially crafted data to the application, trigger an integer overflow and execute arbitrary code on the target system or eliminate expected cryptographic properties.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Install update from vendor's website.

References

• https://alas.aws.amazon.com/AL2023/ALAS-2023-081.html