[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Message-ID: <4F1DE075.90309@gmail.com>
Date: Mon, 23 Jan 2012 23:34:29 +0100
From: Michael Harrison <n0idx80@...il.com>
To: oss-security@...ts.openwall.com
Subject: Re: CVE request: spamdyke buffer overflow vulnerability
Kurt,
Thanks for your extra effort. We greatly appreciate it.
Michael
On 1/23/12 10:53 PM, Kurt Seifried wrote:
> On 01/20/2012 06:35 PM, Kurt Seifried wrote:
>> On 01/20/2012 01:42 AM, Agostino Sarubbo wrote:
>>> According to secunia advisory:
>>> https://secunia.com/advisories/47548/ :
>>> Description:
>>>
>>> Some vulnerabilities have been reported in spamdyke, which potentially can be
>>> exploited by malicious people to compromise a vulnerable system.
>>>
>>> The vulnerabilities are caused due to boundary errors related to the incorrect
>>> use of the "snprintf()" and "vsnprintf()" functions, which can be exploited to
>>> cause buffer overflows.
>>>
>>> The vulnerabilities are reported in versions prior to 4.3.0.
>>>
>>>
>>> Solution
>>> Update to version 4.3.0.
>>>
>>>
>>> and from upstream changelog:
>>> http://www.spamdyke.org/documentation/Changelog.txt :
>>>
>>> Fixed a number of very serious errors in the usage ofc.
>>> The return value was being used as the length of the string printed into
>>> the buffer, but the return value really indicates the length of the string
>>> that *could* be printed if the buffer were of infinite size. Because the
>>> returned value could be larger than the buffer's size, this meant remotely
>>> exploitable buffer overflows were possible, depending on spamdyke's
>>> configuration.
>>>
>>> and from upstream mailing list:
>>> http://www.mail-archive.com/spamdyke-release@spamdyke.org/msg00014.html
>>>
>>> it also fixes a series of major bugs
>>> that could lead to buffer overflows. Depending on spamdyke's configuration,
>>> these could cause remotely exploitable security holes. Please upgrade
>>> immediately!
>>>
>>> Please assign a CVE
>>>
>> Can you include some links to actual code commits? I want to prevent
>> duplicates and more information would aid in that.
>>
> Ugh so I downloaded (www.spamdyke.org/download.html) and diff'ed
> spamdyke 4.2.1 and 4.3.0 and checked for snprint/vsnprintf occurances
> being replaced, there's about 80 (all virtually identical fixes). I also
> checked 4.3.0 to 4.3.1, no more of those fixes, so it's safe to say this
> fix at least is largely confined to the 4.3.0 update.
>
> Please use CVE-2012-0802 for this issue.
>
>
>
--
It's not about what you know, but what is left to learn~
-----BEGIN PGP PUBLIC KEY BLOCK-----
Version: GnuPG v2.0.17 (GNU/Linux)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=Wk3z
-----END PGP PUBLIC KEY BLOCK-----
Download attachment "signature.asc" of type "application/pgp-signature" (536 bytes)
Powered by blists - more mailing lists
Please check out the
Open Source Software Security Wiki, which is counterpart to this
mailing list.
Confused about mailing lists and their use?
Read about mailing lists on Wikipedia
and check out these
guidelines on proper formatting of your messages.
