CVE-2016-7056

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.61% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 49.3% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2018-09-10 16:00Z8 YR AGO

Last updated

2024-08-06 01:50Z2 YR AGO

Reserved

2016-08-23

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 5.5)

CNA CVSS vector

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Weaknesses

• CWE-385Covert Timing ChannelBase
• CWE-320

Data version

5.1

Document digest

ea523a719a19be868cb83f9a795e6cbfa611b66008b96b9010e097c23f092db8

• eprint.iacr.orghttps://eprint.iacr.org/2016/1195x_refsource_MISC
• access.redhat.comRHSA-2017:1801https://access.redhat.com/errata/RHSA-2017:1801vendor-advisoryx_refsource_REDHAT
• git.openssl.orghttps://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=8aed2a7548362e88e84a7feb795a3a97e8395008x_refsource_CONFIRM
• access.redhat.comRHSA-2017:1413https://access.redhat.com/errata/RHSA-2017:1413vendor-advisoryx_refsource_REDHAT
• ftp.openbsd.orghttps://ftp.openbsd.org/pub/OpenBSD/patches/6.0/common/016_libcrypto.patch.sigx_refsource_CONFIRM
• www.securitytracker.com1037575http://www.securitytracker.com/id/1037575vdb-entryx_refsource_SECTRACK
• access.redhat.comRHSA-2017:1414https://access.redhat.com/errata/RHSA-2017:1414vendor-advisoryx_refsource_REDHAT
• seclists.org[oss-security] 20170110 CVE-2016-7056 ECDSA P-256 timing attack key recovery (OpenSSL, LibreSSL, BoringSSL)https://seclists.org/oss-sec/2017/q1/52mailing-listx_refsource_MLIST
• www.debian.orgDSA-3773https://www.debian.org/security/2017/dsa-3773vendor-advisoryx_refsource_DEBIAN
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-7056x_refsource_CONFIRM
• people.canonical.comhttps://people.canonical.com/~ubuntu-security/cve/2016/CVE-2016-7056.htmlx_refsource_CONFIRM
• www.securityfocus.com95375http://www.securityfocus.com/bid/95375vdb-entryx_refsource_BID
• rhn.redhat.comRHSA-2017:1415http://rhn.redhat.com/errata/RHSA-2017-1415.htmlvendor-advisoryx_refsource_REDHAT
• ftp.openbsd.orghttps://ftp.openbsd.org/pub/OpenBSD/patches/5.9/common/033_libcrypto.patch.sigx_refsource_CONFIRM
• security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2016-7056x_refsource_CONFIRM
• access.redhat.comRHSA-2017:1802https://access.redhat.com/errata/RHSA-2017:1802vendor-advisoryx_refsource_REDHAT