Описание
Security update for openssl-1_1
This update for openssl-1_1 fixes the following issues:
Security issue fixed:
- CVE-2019-1551: Fixed an overflow bug in the x64_64 Montgomery squaring procedure used in exponentiation with 512-bit moduli (bsc#1158809).
Various FIPS related improvements were done:
- FIPS: Backport SSH KDF to openssl (jsc#SLE-8789, bsc#1157775).
- Port FIPS patches from SLE-12 (bsc#1158101).
- Use SHA-2 in the RSA pairwise consistency check (bsc#1155346).
This update was imported from the SUSE:SLE-15-SP1:Update update project.
Список пакетов
openSUSE Leap 15.1
Ссылки
- E-Mail link for openSUSE-SU-2020:0062-1
- SUSE Security Ratings
- SUSE Bug 1155346
- SUSE Bug 1157775
- SUSE Bug 1158101
- SUSE Bug 1158809
- SUSE CVE CVE-2019-1551 page
Описание
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. Fixed in OpenSSL 1.1.1e (Affected 1.1.1-1.1.1d). Fixed in OpenSSL 1.0.2u (Affected 1.0.2-1.0.2t).
Затронутые продукты
Ссылки
- CVE-2019-1551
- SUSE Bug 1158809
- SUSE Bug 1205621