16-Year-Old Security Bug Affects Millions of HP, Samsung, Xerox Printers

16-Year-Old Security Bug Affects Millions of HP, Samsung, Xerox Printers 1

Details have emerged about a high severity security vulnerability affecting a software driver used in HP, Xerox, and Samsung printers that has remained undetected since 2005.

Tracked as CVE-2021-3438 (CVSS score: 8.8), the issue concerns a buffer overflow in a print driver installer package named “SSPORT.SYS” that can enable remote privilege and arbitrary code execution. Hundreds of millions of printers have been released worldwide to date with the vulnerable driver in question.

However, there is no evidence that the flaw was abused in real-world attacks.

Stack Overflow Teams

“A potential buffer overflow in the software drivers for certain HP LaserJet products and Samsung product printers could lead to an escalation of privilege,” according to an advisory published in May.

The issue was reported to HP by threat intelligence researchers from SentinelLabs on February 18, 2021, following which remedies have been published for the affected printers as of May 19, 2021.

CVE-2021-3438

Specifically, the issue hinges on the fact that the printer driver doesn’t sanitize the size of the user input, potentially allowing an unprivileged user to escalate privileges and run malicious code in kernel mode on systems that have…

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