Bug 1009528 (CVE-2016-7055)

Summary:	VUL-1: CVE-2016-7055: openssl: Montgomery multiplication may produce incorrect results
Product:	[Novell Products] SUSE Security Incidents	Reporter:	Marcus Meissner <meissner>
Component:	Incidents	Assignee:	Security Team bot <security-team>
Status:	RESOLVED FIXED	QA Contact:	Security Team bot <security-team>
Severity:	Normal
Priority:	P4 - Low	CC:	astieger, meissner, vcizek
Version:	unspecified
Target Milestone:	---
Hardware:	Other
OS:	Other
Whiteboard:	CVSSv2:SUSE:CVE-2016-7055:2.6:(AV:N/AC:H/Au:N/C:N/I:N/A:P)
Found By:	---	Services Priority:
Business Priority:		Blocker:	---
Marketing QA Status:	---	IT Deployment:	---
Bug Depends on:
Bug Blocks:	1021641

Description Marcus Meissner 2016-11-10 15:26:09 UTC

Montgomery multiplication may produce incorrect results (CVE-2016-7055)
=======================================================================

Severity: Low

There is a carry propagating bug in the Broadwell-specific Montgomery
multiplication procedure that handles input lengths divisible by, but
longer than 256 bits. Analysis suggests that attacks against RSA, DSA
and DH private keys are impossible. This is because the subroutine in
question is not used in operations with the private key itself and an input
of the attacker's direct choice. Otherwise the bug can manifest itself as
transient authentication and key negotiation failures or reproducible
erroneous outcome of public-key operations with specially crafted input.
Among EC algorithms only Brainpool P-512 curves are affected and one
presumably can attack ECDH key negotiation. Impact was not analyzed in
detail, because pre-requisites for attack are considered unlikely. Namely
multiple clients have to choose the curve in question and the server has to
share the private key among them, neither of which is default behaviour.
Even then only clients that chose the curve will be affected.

OpenSSL 1.1.0 users should upgrade to 1.1.0c

This issue does not affect OpenSSL versions prior to 1.0.2. Due to the low
severity of this defect we are not issuing a new 1.0.2 release at this time.
We recommend that 1.0.2 users wait for the next 1.0.2 release for the fix to
become available. The fix is also available in the OpenSSL git repository in
commit 57c4b9f6a2.

This issue was publicly reported as transient failures and was not
initially recognized as a security issue. Thanks to Richard Morgan for
providing reproducible case. The fix was developed by Andy Polyakov of
the OpenSSL development team.

Comment 1 Swamp Workflow Management 2016-11-10 23:00:14 UTC

bugbot adjusting priority

Comment 2 Vítězslav Čížek 2016-11-16 15:00:45 UTC

1.0.2 and above is affected. So only SLE-12-SP2/Leap and Factory.
Fixed by:

commit 57c4b9f6a2f800b41ce2836986fe33640f6c3f8a
Author: Andy Polyakov <appro@openssl.org>
Date:   Sun Nov 6 18:33:17 2016 +0100

    bn/asm/x86_64-mont.pl: fix for CVE-2016-7055 (Low severity).

Comment 3 Andreas Stieger 2017-01-26 14:19:50 UTC

https://www.openssl.org/news/secadv/20170126.txt

Montgomery multiplication may produce incorrect results (CVE-2016-7055)
=======================================================================

Severity: Low

This issue was previously fixed in 1.1.0c and covered in security advisory
https://www.openssl.org/news/secadv/20161110.txt

OpenSSL 1.0.2k users should upgrade to 1.0.2k


Note
====

Support for version 1.0.1 ended on 31st December 2016. Support for versions
0.9.8 and 1.0.0 ended on 31st December 2015. Those versions are no longer
receiving security updates.

Comment 4 Bernhard Wiedemann 2017-01-27 13:03:50 UTC

This is an autogenerated message for OBS integration:
This bug (1009528) was mentioned in
https://build.opensuse.org/request/show/452919 Factory / openssl

Comment 9 Swamp Workflow Management 2017-02-09 14:10:35 UTC

SUSE-SU-2017:0431-1: An update that fixes three vulnerabilities is now available.

Category: security (moderate)
Bug References: 1009528,1022085,1022086
CVE References: CVE-2016-7055,CVE-2017-3731,CVE-2017-3732
Sources used:
SUSE Linux Enterprise Module for Web Scripting 12 (src):    nodejs6-6.9.5-7.1

Comment 10 Swamp Workflow Management 2017-02-10 20:08:09 UTC

SUSE-SU-2017:0441-1: An update that solves three vulnerabilities and has 5 fixes is now available.

Category: security (moderate)
Bug References: 1000677,1001912,1009528,1019637,1021641,1022085,1022086,1022271
CVE References: CVE-2016-7055,CVE-2017-3731,CVE-2017-3732
Sources used:
SUSE Linux Enterprise Software Development Kit 12-SP2 (src):    openssl-1.0.2j-59.1
SUSE Linux Enterprise Server for Raspberry Pi 12-SP2 (src):    openssl-1.0.2j-59.1
SUSE Linux Enterprise Server 12-SP2 (src):    openssl-1.0.2j-59.1
SUSE Linux Enterprise Desktop 12-SP2 (src):    openssl-1.0.2j-59.1

Comment 11 Bernhard Wiedemann 2017-02-11 15:00:46 UTC

This is an autogenerated message for OBS integration:
This bug (1009528) was mentioned in
https://build.opensuse.org/request/show/456393 42.1 / nodejs

Comment 12 Swamp Workflow Management 2017-02-17 03:13:21 UTC

openSUSE-SU-2017:0481-1: An update that solves three vulnerabilities and has 5 fixes is now available.

Category: security (moderate)
Bug References: 1000677,1001912,1009528,1019637,1021641,1022085,1022086,1022271
CVE References: CVE-2016-7055,CVE-2017-3731,CVE-2017-3732
Sources used:
openSUSE Leap 42.2 (src):    openssl-1.0.2j-4.1

Comment 13 Swamp Workflow Management 2017-02-20 23:07:28 UTC

openSUSE-SU-2017:0527-1: An update that fixes three vulnerabilities is now available.

Category: security (moderate)
Bug References: 1009528,1022085,1022086
CVE References: CVE-2016-7055,CVE-2017-3731,CVE-2017-3732
Sources used:
openSUSE Leap 42.1 (src):    nodejs-4.7.3-39.1

Comment 14 Marcus Meissner 2017-03-02 14:02:14 UTC

released

Comment 15 Swamp Workflow Management 2017-03-29 16:13:54 UTC

SUSE-SU-2017:0855-1: An update that solves three vulnerabilities and has one errata is now available.

Category: security (moderate)
Bug References: 1000036,1009528,1022085,1022086
CVE References: CVE-2016-7055,CVE-2017-3731,CVE-2017-3732
Sources used:
SUSE Linux Enterprise Module for Web Scripting 12 (src):    nodejs4-4.7.3-14.1
SUSE Enterprise Storage 4 (src):    nodejs4-4.7.3-14.1

Comment 16 Swamp Workflow Management 2017-04-05 16:20:40 UTC

openSUSE-SU-2017:0941-1: An update that solves three vulnerabilities and has one errata is now available.

Category: security (moderate)
Bug References: 1000036,1009528,1022085,1022086
CVE References: CVE-2016-7055,CVE-2017-3731,CVE-2017-3732
Sources used:
openSUSE Leap 42.2 (src):    nodejs4-4.7.3-5.3.1

Comment 17 Swamp Workflow Management 2018-02-09 20:00:07 UTC

This is an autogenerated message for OBS integration:
This bug (1009528) was mentioned in
https://build.opensuse.org/request/show/574808 42.3 / openssl-steam

Comment 18 Swamp Workflow Management 2018-02-16 11:08:06 UTC

openSUSE-SU-2018:0458-1: An update that solves 16 vulnerabilities and has 12 fixes is now available.

Category: security (important)
Bug References: 1001148,1009528,1019334,1022085,1022086,1022271,982268,982575,983249,984323,990207,990392,990419,990428,991193,991877,992120,993819,994749,994844,995075,995324,995359,995377,998190,999665,999666,999668
CVE References: CVE-2016-2177,CVE-2016-2178,CVE-2016-2179,CVE-2016-2180,CVE-2016-2181,CVE-2016-2182,CVE-2016-2183,CVE-2016-6302,CVE-2016-6303,CVE-2016-6304,CVE-2016-6306,CVE-2016-7052,CVE-2016-7055,CVE-2016-7056,CVE-2017-3731,CVE-2017-3732
Sources used:
openSUSE Leap 42.3 (src):    openssl-steam-1.0.2k-4.3.1

Comment 20 Swamp Workflow Management 2022-02-16 20:46:05 UTC

SUSE-FU-2022:0445-1: An update that solves 183 vulnerabilities, contains 21 features and has 299 fixes is now available.

Category: feature (moderate)
Bug References: 1000080,1000117,1000194,1000677,1000742,1001148,1001912,1002585,1002895,1003091,1005246,1009528,1010874,1010966,1011936,1015549,1019637,1021641,1022085,1022086,1022271,1027079,1027610,1027688,1027705,1027908,1028281,1028723,1029523,1029902,1030038,1032118,1032119,1035604,1039469,1040164,1040256,1041090,1042392,1042670,1044095,1044107,1044175,1049186,1049304,1050653,1050665,1055478,1055542,1055825,1056058,1056951,1057496,1062237,1065363,1066242,1066873,1068790,1070737,1070738,1070853,1071905,1071906,1071941,1073310,1073845,1073879,1074247,1076519,1077096,1077230,1078329,1079761,1080301,1081005,1081750,1081751,1082155,1082163,1082318,1083826,1084117,1084157,1085276,1085529,1085661,1087102,1087104,1088573,1089039,1090427,1090765,1090953,1093518,1093917,1094788,1094814,1094883,1095267,1096738,1096937,1097158,1097531,1097624,1098535,1098592,1099308,1099569,1100078,1101246,1101470,1102868,1104789,1106197,1108508,1109882,1109998,1110435,1110869,1110871,1111493,1111622,1111657,1112209,1112357,1113534,1113652,1113742,1113975,1115769,1117951,1118611,1119376,1119416,1119792,1121717,1121852,1122191,1123064,1123185,1123186,1123558,1124885,1125815,1126283,1126318,1127080,1127173,1128146,1128323,1128355,1129071,1129566,1130840,1131291,1132174,1132323,1132455,1132663,1132900,1135009,1136444,1138666,1138715,1138746,1139915,1140255,1141168,1142899,1143033,1143454,1143893,1144506,1149686,1149792,1150003,1150190,1150250,1150895,1153830,1155815,1156677,1156694,1156908,1157104,1157354,1158809,1159235,1159538,1160163,1161557,1161770,1162224,1162367,1162743,1163978,1164310,1165439,1165578,1165730,1165823,1165960,1166139,1166758,1167008,1167501,1167732,1167746,1168480,1168973,1169489,1170175,1170863,1171368,1171561,1172226,1172908,1172928,1173226,1173356,1174009,1174091,1174514,1175729,1176116,1176129,1176134,1176232,1176256,1176257,1176258,1176259,1176262,1176389,1176785,1176977,1177120,1177127,1177559,1178168,1178341,1178670,1179491,1179562,1179630,1179805,1180125,1180781,1181126,1181324,1181944,1182066,1182211,1182244,1182264,1182331,1182333,1182379,1182963,1183059,1183374,1183858,1184505,1185588,1185706,1185748,1186738,1187045,1189521,1190781,1193357,356549,381844,394317,408865,428177,430141,431945,437293,442740,459468,489641,504687,509031,526319,590833,610223,610642,629905,637176,651003,657698,658604,670526,673071,693027,715423,720601,743787,747125,748738,749210,749213,749735,750618,751718,751946,751977,754447,754677,761500,774710,784670,784994,787526,793420,799119,802184,803004,809831,811890,822642,825221,828513,831629,832833,834601,835687,839107,84331,849377,855666,855676,856687,857203,857850,858239,867887,869945,871152,872299,873351,876282,876710,876712,876748,880891,885662,885882,889013,889363,892477,892480,895129,898917,901223,901277,901902,902364,906878,907584,908362,908372,912014,912015,912018,912292,912293,912294,912296,912460,913229,915479,917607,917759,917815,919648,920236,922448,922488,922496,922499,922500,926597,929678,929736,930189,931698,931978,933898,933911,934487,934489,934491,934493,935856,937085,937212,937492,937634,937912,939456,940608,942385,942751,943421,944204,945455,946648,947104,947357,947679,948198,952871,954256,954486,954690,957812,957813,957815,958501,961334,962291,963415,963974,964204,964472,964474,965830,967128,968046,968047,968048,968050,968265,968270,968374,968601,975875,976942,977584,977614,977615,977616,977663,978224,981848,982268,982575,983249,984323,985054,988086,990207,990392,990419,990428,991193,991877,992120,992988,992989,992992,993130,993819,993825,993968,994749,994844,994910,995075,995324,995359,995377,995959,996255,997043,997614,998190,999665,999666,999668
CVE References: CVE-2006-2937,CVE-2006-2940,CVE-2006-3738,CVE-2006-4339,CVE-2006-4343,CVE-2006-7250,CVE-2007-3108,CVE-2007-4995,CVE-2007-5135,CVE-2008-0891,CVE-2008-1672,CVE-2008-5077,CVE-2009-0590,CVE-2009-0591,CVE-2009-0789,CVE-2009-1377,CVE-2009-1378,CVE-2009-1379,CVE-2009-1386,CVE-2009-1387,CVE-2010-0740,CVE-2010-0742,CVE-2010-1633,CVE-2010-2939,CVE-2010-3864,CVE-2010-5298,CVE-2011-0014,CVE-2011-3207,CVE-2011-3210,CVE-2011-3389,CVE-2011-4108,CVE-2011-4576,CVE-2011-4577,CVE-2011-4619,CVE-2011-4944,CVE-2012-0027,CVE-2012-0050,CVE-2012-0845,CVE-2012-0884,CVE-2012-1150,CVE-2012-1165,CVE-2012-2110,CVE-2012-2686,CVE-2012-4929,CVE-2013-0166,CVE-2013-0169,CVE-2013-1752,CVE-2013-4238,CVE-2013-4314,CVE-2013-4353,CVE-2013-6449,CVE-2013-6450,CVE-2014-0012,CVE-2014-0076,CVE-2014-0160,CVE-2014-0195,CVE-2014-0198,CVE-2014-0221,CVE-2014-0224,CVE-2014-1829,CVE-2014-1830,CVE-2014-2667,CVE-2014-3470,CVE-2014-3505,CVE-2014-3506,CVE-2014-3507,CVE-2014-3508,CVE-2014-3509,CVE-2014-3510,CVE-2014-3511,CVE-2014-3512,CVE-2014-3513,CVE-2014-3566,CVE-2014-3567,CVE-2014-3568,CVE-2014-3570,CVE-2014-3571,CVE-2014-3572,CVE-2014-4650,CVE-2014-5139,CVE-2014-7202,CVE-2014-7203,CVE-2014-8275,CVE-2014-9721,CVE-2015-0204,CVE-2015-0205,CVE-2015-0206,CVE-2015-0209,CVE-2015-0286,CVE-2015-0287,CVE-2015-0288,CVE-2015-0289,CVE-2015-0293,CVE-2015-1788,CVE-2015-1789,CVE-2015-1790,CVE-2015-1791,CVE-2015-1792,CVE-2015-2296,CVE-2015-3194,CVE-2015-3195,CVE-2015-3196,CVE-2015-3197,CVE-2015-3216,CVE-2015-4000,CVE-2016-0702,CVE-2016-0705,CVE-2016-0797,CVE-2016-0798,CVE-2016-0799,CVE-2016-0800,CVE-2016-10745,CVE-2016-2105,CVE-2016-2106,CVE-2016-2107,CVE-2016-2109,CVE-2016-2176,CVE-2016-2177,CVE-2016-2178,CVE-2016-2179,CVE-2016-2180,CVE-2016-2181,CVE-2016-2182,CVE-2016-2183,CVE-2016-6302,CVE-2016-6303,CVE-2016-6304,CVE-2016-6306,CVE-2016-7052,CVE-2016-7055,CVE-2016-9015,CVE-2017-18342,CVE-2017-3731,CVE-2017-3732,CVE-2017-3735,CVE-2017-3736,CVE-2017-3737,CVE-2017-3738,CVE-2018-0732,CVE-2018-0734,CVE-2018-0737,CVE-2018-0739,CVE-2018-18074,CVE-2018-20060,CVE-2018-5407,CVE-2018-7750,CVE-2019-10906,CVE-2019-11236,CVE-2019-11324,CVE-2019-13132,CVE-2019-1547,CVE-2019-1551,CVE-2019-1559,CVE-2019-1563,CVE-2019-20907,CVE-2019-20916,CVE-2019-5010,CVE-2019-6250,CVE-2019-8341,CVE-2019-9740,CVE-2019-9947,CVE-2020-14343,CVE-2020-15166,CVE-2020-15523,CVE-2020-15801,CVE-2020-1747,CVE-2020-1971,CVE-2020-25659,CVE-2020-26137,CVE-2020-27783,CVE-2020-28493,CVE-2020-29651,CVE-2020-36242,CVE-2020-8492,CVE-2021-23336,CVE-2021-23840,CVE-2021-23841,CVE-2021-28957,CVE-2021-29921,CVE-2021-3177,CVE-2021-33503,CVE-2021-3426,CVE-2021-3712
JIRA References: ECO-3105,SLE-11435,SLE-12684,SLE-12986,SLE-13688,SLE-14253,SLE-15159,SLE-15860,SLE-15861,SLE-16754,SLE-17532,SLE-17957,SLE-18260,SLE-18354,SLE-18446,SLE-19264,SLE-3887,SLE-4480,SLE-4577,SLE-7686,SLE-9135
Sources used:
SUSE Manager Tools 12-BETA (src):    venv-salt-minion-3002.2-3.3.2

NOTE: This line indicates an update has been released for the listed product(s). At times this might be only a partial fix. If you have questions please reach out to maintenance coordination.