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Bug 1304303 - (CVE-2015-8803) CVE-2015-8803 nettle: secp256 calculation bug
CVE-2015-8803 nettle: secp256 calculation bug
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
: ---
: ---
Assigned To: Red Hat Product Security
impact=moderate,public=20160202,repor...
: Reopened, Security
Depends On: 1304308 1304304 1304305 1304306 1304307 1305766 1314374
Blocks: 1304384
  Show dependency tree / graph
 
Reported: 2016-02-03 04:52 EST by Andrej Nemec
Modified: 2016-11-04 04:29 EDT (History)
8 users (show)

See Also:
Fixed In Version: nettle 3.2
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2016-11-03 17:59:32 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---

Attachments (Terms of Use)
Test case (1.14 KB, text/plain)
2016-02-09 02:55 EST, Tomas Hoger 		no flags Details
Add an attachment (proposed patch, testcase, etc.)


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:2582 normal SHIPPED_LIVE Moderate: nettle security and bug fix update 2016-11-03 08:08:24 EDT

  None (edit)
Description Andrej Nemec 2016-02-03 04:52:35 EST 
A mistake in the computation of elliptic curve scalar multiplications was found in nettle. The computation compiles a certain curve point with 1, which should not change the coordinates, however it does.

External reference:

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

Upstream fix:

https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d
Comment 1 Andrej Nemec 2016-02-03 04:53:34 EST 
Created nettle tracking bugs for this issue:

Affects: fedora-all [bug 1304305]
Affects: epel-5 [bug 1304307]
Comment 2 Andrej Nemec 2016-02-03 04:53:40 EST 
Created mingw-nettle tracking bugs for this issue:

Affects: fedora-all [bug 1304304]
Affects: epel-7 [bug 1304308]
Comment 3 Andrej Nemec 2016-02-03 04:53:45 EST 
Created compat-nettle27 tracking bugs for this issue:

Affects: fedora-23 [bug 1304306]
Comment 5 Andrej Nemec 2016-02-03 08:08:37 EST 
CVE assignment:

http://seclists.org/oss-sec/2016/q1/273
Comment 6 Fedora Update System 2016-02-04 18:21:45 EST 
nettle-3.2-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 9 Tomas Hoger 2016-02-09 02:55 EST 
Created attachment 1122346 [details]
Test case

Local copy of the test case that was posted to the upstream list:

https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003028.html
Comment 11 Fedora Update System 2016-02-14 21:53:23 EST 
mingw-gnutls-3.4.9-1.fc23, mingw-nettle-3.2-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 12 Fedora Update System 2016-02-20 21:23:02 EST 
nettle-2.7.1-6.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.
Comment 15 Fedora Update System 2016-06-02 10:56:48 EDT 
compat-nettle27-2.7.1-2.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
Comment 16 errata-xmlrpc 2016-11-03 15:30:55 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2582 https://rhn.redhat.com/errata/RHSA-2016-2582.html
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