SB2020042708 - Remote code execution in cups

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2020-3898)

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

The vulnerability exists due to a boundary error when processing files within the ppdFindOption() function in cups. A remote attacker can send specially crafted data to the daemon, trigger 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) Out-of-bounds read (CVE-ID: CVE-2019-8842)

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

The vulnerability exists due to a boundary condition within ippReadIO function. A remote attacker can pass specially crafted document to the service, trigger out-of-bounds read error and read contents of memory on the system or crash the service.

Remediation

Install update from vendor's website.

References

• https://lists.opensuse.org/opensuse-security-announce/2020-04/msg00040.html
• https://bugzilla.suse.com/show_bug.cgi?id=1168422
• https://www.suse.com/security/cve/CVE-2020-3898.html
• https://github.com/apple/cups/releases/tag/v2.3.3