Gentoo Linux Security Advisory 201709-19 - A vulnerability in Exim may allow local users to gain root privileges. Versions less than 4.89-r1 are affected.
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Qualys has released a large amount of research surrounding the use of stack clash vulnerabilities and how stack guard on Linux can be bypassed.
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Ubuntu Security Notice 3322-1 - It was discovered that Exim did not properly deallocate memory when processing certain command line arguments. A local attacker could use this in conjunction with another vulnerability to possibly execute arbitrary code and gain administrative privileges.
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