The X.Org Server, a commonly used component to the Linux desktop, keeps on giving when it comes to security vulnerabilities with its massive, aging, and ill-maintained code-base. Disclosed on Monday night was CVE-2023-0494 as the latest security advisory and another discovery by the Trend Micro Zero Day Initiative. . CVE-2023-0494 entails local privilege elevation on systems where the X.Org Server is privileged and remote code execution is supported for SSH X forwarding sessions. Thankfully for many modern X.Org Server environments these days, the X.Org Server is no longer run as root / elevated privileges but for older systems and in other select configurations unfortunately remains running in such a vulnerable configuration. The CVE-2023-0494 vulnerability involves a use-after-free condition within DeepCopyPointerClasses for allowing reading and writing to freed memory via ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo(). The link for this article located at Phoronix is no longer available. . CVE-2023-0495 leads to unauthorized access in OpenSSH installations under certain conditions.. X.Org Server, Local Escalation, Security Threat. . Brittany Day
Get the latest Linux and open source security news straight to your inbox.