Full Disclosure mailing list archives
Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability
From: Ismail Dönmez <ismail () pardus org tr>
Date: Thu, 15 Mar 2007 17:10:18 +0200
On Thursday 15 March 2007 16:48:55 you wrote:
On Thu, 15 Mar 2007 14:16:41 +0200, Ismail =?utf-8?q?D=C3=B6nmez?= said:str{cpy,cat,...} which don't take an size attribute should be removed from standard libc, I don't see why people still insist on using this insecure variants.Although it may come as a surprise to some, not all software has to worry about working in a security-critical environment. Quite often, the program is a one-off that's working with data that is relatively trustable, and there is little or no chance of the software being compromised. And keep in mind that str* functions *can* be used safely if somebody did a strlen() check earlier in the program.
Ok well still you can't predict the future, the product might some use elsewhere in a different environment. Using strncpy is just strcpy + strlen anyway it can't have a big speed impact or anything.
I mean, come *ON*. If there exists a black hat that can drop an exploit string into the middle of a data file produced by some data-mining program of ours, and exploit a program that *didn't even exist* when the data was written..... in that case, we're screwed anyhow. There's no way to stop a black hat that knows how to exploit code from the future.
Nothing is truly secure, that doesn't mean we should write known-to-be insecure code now does it? :) -- Happiness in intelligent people is the rarest thing I know. (Ernest Hemingway) Ismail Donmez ismail (at) pardus.org.tr GPG Fingerprint: 7ACD 5836 7827 5598 D721 DF0D 1A9D 257A 5B88 F54C Pardus Linux / KDE developer _______________________________________________ Full-Disclosure - We believe in it. Charter: http://lists.grok.org.uk/full-disclosure-charter.html Hosted and sponsored by Secunia - http://secunia.com/
Current thread:
- Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability starcadi starcadi (Mar 14)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability James Matthews (Mar 14)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability Ismail Dönmez (Mar 15)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability Marcus Meissner (Mar 15)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability Ismail Dönmez (Mar 15)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability Valdis . Kletnieks (Mar 15)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability Ismail Dönmez (Mar 15)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability Ismail Dönmez (Mar 15)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability Brian Eaton (Mar 16)
- Re: Python 2.5 (Modules/zlib) minigzip local buffer overflow vulnerability James Matthews (Mar 14)