CVE-2019-1551 (https://nvd.nist.gov/vuln/detail/CVE-2019-1551): There is 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.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c2b642ed1dfc7cb054380769761024dd73a768c6 commit c2b642ed1dfc7cb054380769761024dd73a768c6 Author: Thomas Deutschmann <whissi@gentoo.org> AuthorDate: 2019-12-21 20:30:14 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2019-12-21 20:30:27 +0000 dev-libs/openssl-compat: bump to v1.0.2u Bug: https://bugs.gentoo.org/702176 Package-Manager: Portage-2.3.82, Repoman-2.3.20 Signed-off-by: Thomas Deutschmann <whissi@gentoo.org> dev-libs/openssl-compat/Manifest | 1 + .../openssl-compat/openssl-compat-1.0.2u.ebuild | 246 +++++++++++++++++++++ 2 files changed, 247 insertions(+) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=4ee264fd167eddcdc37f667af5b667a94ceaee8c commit 4ee264fd167eddcdc37f667af5b667a94ceaee8c Author: Thomas Deutschmann <whissi@gentoo.org> AuthorDate: 2019-12-21 20:28:27 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2019-12-21 20:30:26 +0000 dev-libs/openssl: bump to v1.0.2u Bug: https://bugs.gentoo.org/702176 Package-Manager: Portage-2.3.82, Repoman-2.3.20 Signed-off-by: Thomas Deutschmann <whissi@gentoo.org> dev-libs/openssl/Manifest | 1 + dev-libs/openssl/openssl-1.0.2u.ebuild | 308 +++++++++++++++++++++++++++++++++ 2 files changed, 309 insertions(+)
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=273422f6cae129a4a97402641e81b13db9461ec4 commit 273422f6cae129a4a97402641e81b13db9461ec4 Author: Thomas Deutschmann <whissi@gentoo.org> AuthorDate: 2020-01-01 21:24:50 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2020-01-01 21:25:12 +0000 dev-libs/openssl-compat: security cleanup (#702176) Bug: https://bugs.gentoo.org/702176 Package-Manager: Portage-2.3.84, Repoman-2.3.20 Signed-off-by: Thomas Deutschmann <whissi@gentoo.org> dev-libs/openssl-compat/Manifest | 1 - .../openssl-compat/openssl-compat-1.0.2t-r1.ebuild | 246 --------------------- 2 files changed, 247 deletions(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=617d66b7f218311a247c1b8783d866e2d6325eac commit 617d66b7f218311a247c1b8783d866e2d6325eac Author: Thomas Deutschmann <whissi@gentoo.org> AuthorDate: 2020-01-01 21:23:57 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2020-01-01 21:25:10 +0000 dev-libs/openssl-compat: move stable keywords Bug: https://bugs.gentoo.org/702176 Package-Manager: Portage-2.3.84, Repoman-2.3.20 Signed-off-by: Thomas Deutschmann <whissi@gentoo.org> dev-libs/openssl-compat/openssl-compat-1.0.2u.ebuild | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2fd3637f1b9e3cee6adf6b7c10d1ecc4ea08071e commit 2fd3637f1b9e3cee6adf6b7c10d1ecc4ea08071e Author: Thomas Deutschmann <whissi@gentoo.org> AuthorDate: 2020-01-01 21:22:39 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2020-01-01 21:25:09 +0000 dev-libs/openssl: security cleanup (#702176) Bug: https://bugs.gentoo.org/702176 Package-Manager: Portage-2.3.84, Repoman-2.3.20 Signed-off-by: Thomas Deutschmann <whissi@gentoo.org> dev-libs/openssl/Manifest | 1 - dev-libs/openssl/openssl-1.0.2t-r1.ebuild | 308 ------------------------------ 2 files changed, 309 deletions(-) https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=5d84fb00a536f5754b7ca8d253fb43c19e2a066d commit 5d84fb00a536f5754b7ca8d253fb43c19e2a066d Author: Thomas Deutschmann <whissi@gentoo.org> AuthorDate: 2020-01-01 21:21:43 +0000 Commit: Thomas Deutschmann <whissi@gentoo.org> CommitDate: 2020-01-01 21:25:08 +0000 dev-libs/openssl: move stable keywords Bug: https://bugs.gentoo.org/702176 Package-Manager: Portage-2.3.84, Repoman-2.3.20 Signed-off-by: Thomas Deutschmann <whissi@gentoo.org> dev-libs/openssl/openssl-1.0.2u.ebuild | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
Added to an existing GLSA request.
This issue was resolved and addressed in GLSA 202004-10 at https://security.gentoo.org/glsa/202004-10 by GLSA coordinator Thomas Deutschmann (whissi).
