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Common Desktop Environment 2.3.1 / 1.6 libDtSvc Buffer Overflow

Posted Apr 17, 2020

Authored by Marco Ivaldi

A difficult to exploit stack-based buffer overflow in the _DtCreateDtDirs() function in the Common Desktop Environment version distributed with Oracle Solaris 10 1/13 (Update 11) and earlier may allow local users to corrupt memory and potentially execute arbitrary code in order to escalate privileges via a long X11 display name. The vulnerable function is located in the libDtSvc library and can be reached by executing the setuid program dtsession. Versions 2.3.1 and below as well as 1.6 and earlier are affected.

tags | exploit, overflow, arbitrary, local

systems | solaris

advisories | CVE-2020-2851

SHA-256 | 7f50111057b19d6619dd24b1f2d5b993965259bb33db3ffa61cb8236878b3cc3

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