[X2Go-Dev] Bug#777: Bug#777: nx-libs: incorrect usage of scanf

[Heinrich Schuchardt]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Squeeze reached end of life.
Package libc6 in wheezy is patched against the bug.
Package libc6 in jessie is not vulnerable as it uses a newer libc6
release.

So I think we should close this bug and concentrate on updating our
mesa code to the newest version instead of patching some old version.

Best regards

Heinrich

On 31.01.2015 16:04, Mike Gabriel wrote:
> Hi Heinrich,
> 
> On  Fr 30 Jan 2015 20:35:53 CET, Heinrich Schuchardt wrote:
> 
>> package: nx-libs version: head
>> 
>> In different parts of the nx-libs library you can find usages of
>> scanf like
>> 
>> /* check for MESA_GAMMA environment variable */ gamma =
>> _mesa_getenv("MESA_GAMMA"); if (gamma) { v->RedGamma =
>> v->GreenGamma = v->BlueGamma = 0.0; sscanf( gamma, "%f %f %f",
>> &v->RedGamma, &v->GreenGamma, &v->BlueGamma );
>> 
>> According to cppcheck:
>> 
>> scanf without field width limits can crash with huge input data
>> on libc versions older than 2.13-25. Add a field width specifier
>> to fix this problem: %i => %3i
> 
> Any chance you could also provide a patch for this?
> 
> Mike
> 

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=2gk9
-----END PGP SIGNATURE-----