oss-sec mailing list archives

Re: Miscomputations of elliptic curve scalar multiplications in Nettle


From: cve-assign () mitre org
Date: Tue, 2 Feb 2016 19:33:33 -0500 (EST)

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I discovered two carry propagation bugs

The P-256 bug is
in the C code and affects multiple architectures.

https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003028.html

secp256 calculation bug (already fixed)

Sat Dec 12 21:48:58 CET 2015

https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d

2015-12-10

Use CVE-2015-8803.


The P-384 bug is in
the assembly code and only affects 64 bit x86.

https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003024.html

Miscalculations on secp384 curve

Fri Dec 11 11:19:05 CET 2015

https://git.lysator.liu.se/nettle/nettle/commit/fa269b6ad06dd13c901dbd84a12e52b918a09cd7

2015-12-15

Use CVE-2015-8804.


Niels Moeller discovered
another carry propagation bug in P-256

https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d

2015-12-10

Use CVE-2015-8805.

- -- 
CVE assignment team, MITRE CVE Numbering Authority
M/S M300
202 Burlington Road, Bedford, MA 01730 USA
[ PGP key available through http://cve.mitre.org/cve/request_id.html ]
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