oss-sec mailing list archives
Re: Medium severity flaw with Perl 5
From: Eitan Adler <lists () eitanadler com>
Date: Sat, 27 Oct 2012 15:08:00 -0400
On 26 October 2012 04:48, Tim Brown <timb () nth-dimension org uk> wrote:
I recently discovered that Perl 5 interpreter is vulnerable to memory corruption when large values are supplied to the x operator. After discussions with the vendor, CVE-2012-5195 was assigned to this vulnerability. I know Red Hat and Debian have picked it up, but I'm not sure about other vendors.
On FreeBSD on amd64: typedef __uint64_t __size_t; on i386 I believe __size_t is __unit32_t; Since memset takes a size_t (typedefed of __size_t) a negative number would either be optimized out or turned into a large positive number. As such there is no negative offset or negative jump. and such we are not vulnerable. Is this correct or am I missing something? -- Eitan Adler
Current thread:
- Medium severity flaw with Perl 5 Tim Brown (Oct 26)
- Re: Medium severity flaw with Perl 5 Eitan Adler (Oct 27)