4.7

CVE-2018-0495

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Gnupg ≫ Libgcrypt Version < 1.7.10
Gnupg ≫ Libgcrypt Version >= 1.8.0 < 1.8.3
Canonical ≫ Ubuntu Linux Version 12.04 SwEdition esm
Canonical ≫ Ubuntu Linux Version 14.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 16.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 17.10
Canonical ≫ Ubuntu Linux Version 18.04 SwEdition lts
Canonical ≫ Ubuntu Linux Version 18.10
Debian ≫ Debian Linux Version 8.0
Debian ≫ Debian Linux Version 9.0
Redhat ≫ Ansible Tower Version 3.3
Oracle ≫ Traffic Director Version 11.1.1.9.0
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.89% 0.545
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 4.7 1 3.6
CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
NIST 1.9 3.4 2.9
AV:L/AC:M/Au:N/C:P/I:N/A:N
CWE-203 Observable Discrepancy

The product behaves differently or sends different responses under different circumstances in a way that is observable to an unauthorized actor.

https://www.oracle.com/technetwork/security-advisory/cpuapr2019-5072813.html
Patch
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3505
Third Party Advisory
https://usn.ubuntu.com/3692-2/
Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:3221
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1543
https://usn.ubuntu.com/3692-1/
Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1296
https://access.redhat.com/errata/RHSA-2019:1297
http://www.securitytracker.com/id/1041144
Third Party Advisory
VDB Entry
http://www.securitytracker.com/id/1041147
Third Party Advisory
VDB Entry
https://access.redhat.com/errata/RHSA-2019:2237
https://dev.gnupg.org/T4011
Patch
Vendor Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libgcrypt.git%3Ba=commit%3Bh=9010d1576e278a4274ad3f4aa15776c28f6ba965
https://lists.debian.org/debian-lts-announce/2018/06/msg00013.html
Third Party Advisory
Mailing List
https://lists.gnupg.org/pipermail/gnupg-announce/2018q2/000426.html
Vendor Advisory
https://usn.ubuntu.com/3689-1/
Third Party Advisory
https://usn.ubuntu.com/3689-2/
Third Party Advisory
https://usn.ubuntu.com/3850-1/
Third Party Advisory
https://usn.ubuntu.com/3850-2/
Third Party Advisory
https://www.debian.org/security/2018/dsa-4231
Third Party Advisory
https://www.nccgroup.trust/us/our-research/technical-advisory-return-of-the-hidden-number-problem/
Third Party Advisory
Exploit