SB2021080610 - SUSE update for php7

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Stack-based buffer overflow (CVE-ID: CVE-2021-21704)

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

Multiple boundary errors exists within firebird_info_cb(), firebird_handle_doer(), firebird_stmt_execute(), and firebird_fetch_blob() function. A remote attacker can pass specially crafted input to the application, trigger a stack-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) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2021-21705)

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP request, bypass the FILTER_VALIDATE_URL and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Remediation

Install update from vendor's website.

References

• https://www.suse.com/support/update/announcement/2021/suse-su-20212637-1/