vulnerability
Oracle Linux: CVE-2018-0495: ELSA-2018-3221: openssl security, bug fix, and enhancement update (MODERATE) (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 2 | (AV:L/AC:M/Au:N/C:P/I:N/A:N) | Jun 13, 2018 | Nov 6, 2018 | Dec 3, 2025 |
Severity
2
CVSS
(AV:L/AC:M/Au:N/C:P/I:N/A:N)
Published
Jun 13, 2018
Added
Nov 6, 2018
Modified
Dec 3, 2025
Description
Libgcrypt before 1.7.10 and 1.8.x before 1.8.3 allows a memory-cache side-channel attack on ECDSA signatures that can be mitigated through the use of blinding during the signing process in the _gcry_ecc_ecdsa_sign function in cipher/ecc-ecdsa.c, aka the Return Of the Hidden Number Problem or ROHNP. To discover an ECDSA key, the attacker needs access to either the local machine or a different virtual machine on the same physical host.
Solutions
oracle-linux-upgrade-nsproracle-linux-upgrade-nspr-develoracle-linux-upgrade-nssoracle-linux-upgrade-nss-develoracle-linux-upgrade-nss-pkcs11-develoracle-linux-upgrade-nss-softoknoracle-linux-upgrade-nss-softokn-develoracle-linux-upgrade-nss-softokn-freebloracle-linux-upgrade-nss-softokn-freebl-develoracle-linux-upgrade-nss-sysinitoracle-linux-upgrade-nss-toolsoracle-linux-upgrade-nss-utiloracle-linux-upgrade-nss-util-develoracle-linux-upgrade-openssloracle-linux-upgrade-openssl-develoracle-linux-upgrade-openssl-libsoracle-linux-upgrade-openssl-perloracle-linux-upgrade-openssl-static
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