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Add a CHANGES entry for CVE-2019-1551

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Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/10576)
This commit is contained in:
Bernd Edlinger 2019-12-05 01:20:14 +01:00
parent ec8fcae925
commit 4975571a5d
1 changed files with 11 additions and 1 deletions

12
CHANGES

@ -9,7 +9,17 @@
Changes between 1.0.2t and 1.0.2u [xx XXX xxxx]
*)
*) Fixed an an overflow bug in the x64_64 Montgomery squaring procedure
used in exponentiation with 512-bit moduli. No EC algorithms are
affected. Analysis suggests that attacks against 2-prime RSA1024,
3-prime RSA1536, and DSA1024 as a result of this defect would be very
difficult to perform and are not believed likely. Attacks against DH512
are considered just feasible. However, for an attack the target would
have to re-use the DH512 private key, which is not recommended anyway.
Also applications directly using the low level API BN_mod_exp may be
affected if they use BN_FLG_CONSTTIME.
(CVE-2019-1551)
[Andy Polyakov]
Changes between 1.0.2s and 1.0.2t [10 Sep 2019]