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openssl-1_1
openssl-CVE-2022-2097.patch
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File openssl-CVE-2022-2097.patch of Package openssl-1_1
From 5908f8cebce81d2605483be4bd48a9b982bafa76 Mon Sep 17 00:00:00 2001 From: Alex Chernyakhovsky <achernya@google.com> Date: Thu, 16 Jun 2022 12:00:22 +1000 Subject: Fix AES OCB encrypt/decrypt for x86 AES-NI and test vectors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit aesni_ocb_encrypt and aesni_ocb_decrypt operate by having a fast-path that performs operations on 6 16-byte blocks concurrently (the "grandloop") and then proceeds to handle the "short" tail (which can be anywhere from 0 to 5 blocks) that remain. As part of initialization, the assembly initializes $len to the true length, less 96 bytes and converts it to a pointer so that the $inp can be compared to it. Each iteration of "grandloop" checks to see if there's a full 96-byte chunk to process, and if so, continues. Once this has been exhausted, it falls through to "short", which handles the remaining zero to five blocks. Unfortunately, the jump at the end of "grandloop" had a fencepost error, doing a `jb` ("jump below") rather than `jbe` (jump below or equal). This should be `jbe`, as $inp is pointing to the *end* of the chunk currently being handled. If $inp == $len, that means that there's a whole 96-byte chunk waiting to be handled. If $inp > $len, then there's 5 or fewer 16-byte blocks left to be handled, and the fall-through is intended. The net effect of `jb` instead of `jbe` is that the last 16-byte block of the last 96-byte chunk was completely omitted. The contents of `out` in this position were never written to. Additionally, since those bytes were never processed, the authentication tag generated is also incorrect. The same fencepost error, and identical logic, exists in both aesni_ocb_encrypt and aesni_ocb_decrypt. This addresses CVE-2022-2097. Co-authored-by: Alejandro Sedeño <asedeno@google.com> Co-authored-by: David Benjamin <davidben@google.com> Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> --- crypto/aes/asm/aesni-x86.pl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) test/evptests.txt | 50 +++++++++++++++++++++++ 1 file changed, 50 insertions(+) diff --git a/crypto/aes/asm/aesni-x86.pl b/crypto/aes/asm/aesni-x86.pl index fe2b26542a..812758e02e 100644 --- a/crypto/aes/asm/aesni-x86.pl +++ b/crypto/aes/asm/aesni-x86.pl @@ -2027,7 +2027,7 @@ my ($l_,$block,$i1,$i3,$i5) = ($rounds_,$key_,$rounds,$len,$out); &movdqu (&QWP(-16*2,$out,$inp),$inout4); &movdqu (&QWP(-16*1,$out,$inp),$inout5); &cmp ($inp,$len); # done yet? - &jb (&label("grandloop")); + &jbe (&label("grandloop")); &set_label("short"); &add ($len,16*6); @@ -2453,7 +2453,7 @@ my ($l_,$block,$i1,$i3,$i5) = ($rounds_,$key_,$rounds,$len,$out); &pxor ($rndkey1,$inout5); &movdqu (&QWP(-16*1,$out,$inp),$inout5); &cmp ($inp,$len); # done yet? - &jb (&label("grandloop")); + &jbe (&label("grandloop")); &set_label("short"); &add ($len,16*6); diff --git a/test/recipes/30-test_evp_data/evpciph.txt b/test/recipes/30-test_evp_data/evpciph.txt index 1c02ea1e9c..e12670d9a4 100644 --- a/test/evptests.txt +++ b/test/evptests.txt @@ -2084,6 +2084,56 @@ Ciphertext = 09A4FD29DE949D9A9AA9924248422097AD4883B4713E6C214FF6567ADA08A967B21 Operation = DECRYPT Result = CIPHERFINAL_ERROR +#Test vectors generated to validate aesni_ocb_encrypt on x86 +Cipher = aes-128-ocb +Key = 000102030405060708090A0B0C0D0E0F +IV = 000000000001020304050607 +Tag = C14DFF7D62A13C4A3422456207453190 +Plaintext = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F +Ciphertext = F5186C9CC3506386919B6FD9443956E05B203313F8AB35E916AB36932EBDDCD2945901BABE7CF29404929F322F954C916065FABF8F1E52F4BD7C538C0F96899519DBC6BC504D837D8EBD1436B45D33F528CB642FA2EB2C403FE604C12B819333 + +Cipher = aes-128-ocb +Key = 000102030405060708090A0B0C0D0E0F +IV = 000000000001020304050607 +Tag = D47D84F6FF912C79B6A4223AB9BE2DB8 +Plaintext = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F +Ciphertext = F5186C9CC3506386919B6FD9443956E05B203313F8AB35E916AB36932EBDDCD2945901BABE7CF29404929F322F954C916065FABF8F1E52F4BD7C538C0F96899519DBC6BC504D837D8EBD1436B45D33F528CB642FA2EB2C403FE604C12B8193332374120A78A1171D23ED9E9CB1ADC204 + +Cipher = aes-128-ocb +Key = 000102030405060708090A0B0C0D0E0F +IV = 000000000001020304050607 +Tag = 41970D13737B7BD1B5FBF49ED4412CA5 +Plaintext = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F7071000102030405060708090A0B0C0D +Ciphertext = F5186C9CC3506386919B6FD9443956E05B203313F8AB35E916AB36932EBDDCD2945901BABE7CF29404929F322F954C916065FABF8F1E52F4BD7C538C0F96899519DBC6BC504D837D8EBD1436B45D33F528CB642FA2EB2C403FE604C12B8193332374120A78A1171D23ED9E9CB1ADC20412C017AD0CA498827C768DDD99B26E91 + +Cipher = aes-128-ocb +Key = 000102030405060708090A0B0C0D0E0F +IV = 000000000001020304050607 +Tag = BE0228651ED4E48A11BDED68D953F3A0 +Plaintext = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F7071000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D +Ciphertext = F5186C9CC3506386919B6FD9443956E05B203313F8AB35E916AB36932EBDDCD2945901BABE7CF29404929F322F954C916065FABF8F1E52F4BD7C538C0F96899519DBC6BC504D837D8EBD1436B45D33F528CB642FA2EB2C403FE604C12B8193332374120A78A1171D23ED9E9CB1ADC20412C017AD0CA498827C768DDD99B26E91EDB8681700FF30366F07AEDE8CEACC1F + +Cipher = aes-128-ocb +Key = 000102030405060708090A0B0C0D0E0F +IV = 000000000001020304050607 +Tag = 17BC6E10B16E5FDC52836E7D589518C7 +Plaintext = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F7071000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D +Ciphertext = F5186C9CC3506386919B6FD9443956E05B203313F8AB35E916AB36932EBDDCD2945901BABE7CF29404929F322F954C916065FABF8F1E52F4BD7C538C0F96899519DBC6BC504D837D8EBD1436B45D33F528CB642FA2EB2C403FE604C12B8193332374120A78A1171D23ED9E9CB1ADC20412C017AD0CA498827C768DDD99B26E91EDB8681700FF30366F07AEDE8CEACC1F39BE69B91BC808FA7A193F7EEA43137B + +Cipher = aes-128-ocb +Key = 000102030405060708090A0B0C0D0E0F +IV = 000000000001020304050607 +Tag = E84AAC18666116990A3A37B3A5FC55BD +Plaintext = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F7071000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D +Ciphertext = F5186C9CC3506386919B6FD9443956E05B203313F8AB35E916AB36932EBDDCD2945901BABE7CF29404929F322F954C916065FABF8F1E52F4BD7C538C0F96899519DBC6BC504D837D8EBD1436B45D33F528CB642FA2EB2C403FE604C12B8193332374120A78A1171D23ED9E9CB1ADC20412C017AD0CA498827C768DDD99B26E91EDB8681700FF30366F07AEDE8CEACC1F39BE69B91BC808FA7A193F7EEA43137B11CF99263D693AEBDF8ADE1A1D838DED + +Cipher = aes-128-ocb +Key = 000102030405060708090A0B0C0D0E0F +IV = 000000000001020304050607 +Tag = 3E5EA7EE064FE83B313E28D411E91EAD +Plaintext = 000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D4E4F505152535455565758595A5B5C5D5E5F606162636465666768696A6B6C6D6E6F7071000102030405060708090A0B0C0D0E0F101112131415161718191A1B1C1D1E1F202122232425262728292A2B2C2D2E2F303132333435363738393A3B3C3D3E3F404142434445464748494A4B4C4D +Ciphertext = F5186C9CC3506386919B6FD9443956E05B203313F8AB35E916AB36932EBDDCD2945901BABE7CF29404929F322F954C916065FABF8F1E52F4BD7C538C0F96899519DBC6BC504D837D8EBD1436B45D33F528CB642FA2EB2C403FE604C12B8193332374120A78A1171D23ED9E9CB1ADC20412C017AD0CA498827C768DDD99B26E91EDB8681700FF30366F07AEDE8CEACC1F39BE69B91BC808FA7A193F7EEA43137B11CF99263D693AEBDF8ADE1A1D838DED48D9E09F452F8E6FBEB76A3DED47611C + # AES XTS test vectors from IEEE Std 1619-2007 Cipher = aes-128-xts Key = 0000000000000000000000000000000000000000000000000000000000000000
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