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mcrypt mcryptMultiple format string vulnerabilities in mcrypt 2.6.8 and earlier might allow user-assisted remote …

Risk 47
Severity
6.8
AV:N/AC:M/Au:N/C:P/I:P/A:P

Multiple format string vulnerabilities in mcrypt 2.6.8 and earlier might allow user-assisted remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via vectors involving (1) errors.c or (2) mcrypt.c.

First published (updated )
CVE-2012-4426

mcrypt mcryptBuffer Overflow

Risk 47
Severity
6.8
Buffer Overflow
AV:N/AC:M/Au:N/C:P/I:P/A:P

A buffer overflow was reported [1],[2] in mcrypt version 2.6.8 and earlier due to a boundary error in the processing of an encrypted file (via the checkfilehead() function in src/extra.c). If a user were tricked into attempting to decrypt a specially-crafted .nc encrypted flie, this flaw would cause a stack-based buffer overflow that could potentially lead to arbitrary code execution.

Note that this is caught by FORTIFYSOURCE, which renders this to being a crash-only bug on Fedora.

There is currently no upstream patches for this flaw.

[1] https://secunia.com/advisories/50507/ [2] https://bugs.gentoo.org/showbug.cgi?id=434112

1 / 2
First published (updated )
CVE-2012-4409

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