Bug 1033570 - nettle: guard against large alloca sizes
Summary: nettle: guard against large alloca sizes
Keywords:
Status: CLOSED CURRENTRELEASE
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: nettle
Version: 7.0
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: Nikos Mavrogiannopoulos
QA Contact: Aleš Mareček
URL:
Whiteboard:
Depends On:
Blocks: 1033527
TreeView+ depends on / blocked
 
Reported: 2013-11-22 12:06 UTC by Florian Weimer
Modified: 2014-06-18 08:14 UTC (History)
3 users (show)

Fixed In Version: nettle-2.6-3.el7
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-06-13 12:02:25 UTC
Target Upstream Version:

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Description Florian Weimer 2013-11-22 12:06:23 UTC 
In several places, TMP_ALLOC is used with potentially large arguments.  This can cause a stack overflow.  Functions taking key_size arguments (e.g., pkcs1_decrypt, pkcs1_encrypt, pkcs1_rsa_digest_encode, ...) and nettle_mpz_random_size are affected.
Comment 2 Nikos Mavrogiannopoulos 2013-12-11 11:06:10 UTC 
I got in contact with upstream to get a fix. Once the upstream decides on the fix I'll backport it.

http://lists.lysator.liu.se/pipermail/nettle-bugs/2013/002853.html
Comment 3 Nikos Mavrogiannopoulos 2013-12-13 16:17:00 UTC 
http://lists.lysator.liu.se/pipermail/nettle-bugs/2013/002898.html
Comment 10 Ludek Smid 2014-06-13 12:02:25 UTC 
This request was resolved in Red Hat Enterprise Linux 7.0.

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