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posted by janrinok on Monday October 19 2015, @11:05PM   Printer-friendly
from the found-and-fixed dept.

What they've found is that there's a companion memory leak (CVE-2015-5333) and buffer overflow (CVE-2015-5334) in the SSL replacement candidate.

The researchers from Qualys (their notice published here) said they were trying to see if a remote code execution attack is feasible against vulnerabilities they've turned up in OpenSMTPD (which earlier this month hit version 5.7.3).

“Because we could not find one in OpenSMTPD itself, we started to review the malloc()s and free()s of its libraries, and eventually found a memory leak in LibreSSL's OBJ_obj2txt() function; we then realized that this function also contains a buffer overflow (an off-by-one, usually stack-based).”

The memory leak provides a path for an attacker to cause a denial-of-service attack, and also permits triggering of the buffer overflow.

The LibreSSL team has released fixes for OpenBSD.


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  • (Score: 0) by Anonymous Coward on Tuesday October 20 2015, @01:22PM

    by Anonymous Coward on Tuesday October 20 2015, @01:22PM (#252277)

    Thank you for writing a good review about alternative programming languages without stooping to the childish level of ignorant name calling that many "programmers" display. They're just scared their limited skills and inability to learn new languages will finally be exposed.