CVE-2016-6489
First published: Mon Aug 01 2016(Updated: )
A cache-related side channel was found in nettle's RSA and DSA decryption code. An attacker could use this flaw to recover the private key, from a co-located virtual-machine instance. References: <a href="https://eprint.iacr.org/2016/596.pdf">https://eprint.iacr.org/2016/596.pdf</a> <a href="https://git.lysator.liu.se/nettle/nettle/commit/3fe1d6549765ecfb24f0b80b2ed086fdc818bff3">https://git.lysator.liu.se/nettle/nettle/commit/3fe1d6549765ecfb24f0b80b2ed086fdc818bff3</a>
Credit: security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux HPC Node | =7.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Workstation | =7.0 | |
| Ubuntu Linux | =12.04 | |
| Ubuntu Linux | =14.04 | |
| Ubuntu Linux | =16.04 | |
| Ubuntu Linux | =16.10 | |
| Nettle | <3.3 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- http://rhn.redhat.com/errata/RHSA-2016-2582.html
- http://www.openwall.com/lists/oss-security/2016/07/29/7
- http://www.ubuntu.com/usn/USN-3193-1
- https://bugzilla.redhat.com/show_bug.cgi?id=1362016
- https://eprint.iacr.org/2016/596.pdf
- https://git.lysator.liu.se/nettle/nettle/commit/3fe1d6549765ecfb24f0b80b2ed086fdc818bff3
- https://security.gentoo.org/glsa/201706-21
- https://www.oracle.com/security-alerts/cpuapr2020.html
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1362017
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1362021
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1362018
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1362022
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1362020
- http://seclists.org/oss-sec/2016/q3/206
- https://git.lysator.liu.se/nettle/nettle/commit/52b9223126b3f997c00d399166c006ae28669068
- https://rhn.redhat.com/errata/RHSA-2016-2582.html
- https://access.redhat.com/security/cve/cve-2016-6489
Frequently Asked Questions
What is the severity of CVE-2016-6489?
CVE-2016-6489 has been classified as a high severity vulnerability due to the potential for private key recovery.
How do I fix CVE-2016-6489?
To fix CVE-2016-6489, update the Nettle library to a version higher than 3.3.
Who is affected by CVE-2016-6489?
CVE-2016-6489 affects users of Nettle versions up to but not including 3.4 on specific distributions like RHEL 7.0 and several versions of Ubuntu.
What kind of attack can exploit CVE-2016-6489?
An attack exploiting CVE-2016-6489 involves recovering private keys through a cache-related side channel in a virtualized environment.
Is CVE-2016-6489 relevant in cloud environments?
Yes, CVE-2016-6489 is particularly relevant in cloud environments where multiple virtual machines may share the same physical resources.
- agent/type
- agent/first-publish-date
- agent/remedy
- collector/mitre-cve
- source/MITRE
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2016-6489
- agent/references
- agent/weakness
- agent/severity
- agent/author
- agent/last-modified-date
- agent/description
- agent/event
- agent/trending
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/redhat
- canonical/red hat enterprise linux desktop
- version/red hat enterprise linux desktop/7.0
- canonical/red hat enterprise linux hpc node
- version/red hat enterprise linux hpc node/7.0
- canonical/red hat enterprise linux server
- version/red hat enterprise linux server/7.0
- canonical/red hat enterprise linux workstation
- version/red hat enterprise linux workstation/7.0
- vendor/canonical
- canonical/ubuntu linux
- version/ubuntu linux/12.04
- version/ubuntu linux/14.04
- version/ubuntu linux/16.04
- version/ubuntu linux/16.10
- vendor/nettle project
- canonical/nettle