CVE-2016-6489: canonical ubuntu_linux Observable Discrepancy
CVSS: 7.5v3.1HighModified
AliasesMGASA-2016-0290SUSE-SU-2017:1481-1UBUNTU-CVE-2016-6489USN-3193-1DEBIAN-CVE-2016-6489DLA-593-1
Published 14-04-2017Last modified 06-08-2024
Vulnerability summary
CVE-2016-6489 is a high (CVSS 7.5) Observable Discrepancy vulnerability in canonical ubuntu_linux. EPSS estimates a 5.01% chance of exploitation in the next 30 days, higher than 92.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.1 (NVD)EPSS score
5.01%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1Timeline
- 14-04-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The RSA and DSA decryption code in Nettle makes it easier for attackers to discover private keys via a cache side channel attack.
CVSS metrics
5 scores · 3 sources · 3 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
High 7.5Preferred score · OSV · Ubuntu (Ecosystem advisory) · calculated from vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NSourcesSingle source
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:N/A:NSourcesSingle source
EPSS trend
Probability
5.01%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.01% on 19-09-2026
19-09-202619-10-2026
EPSS score5.01%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Suse5 products
- libnettle&distro=SUSE Linux Enterprise Desktop 12 SP2< 2.7.1-12.1
- libnettle&distro=SUSE Linux Enterprise Server 12 SP2< 2.7.1-12.1
- libnettle&distro=SUSE Linux Enterprise Server for Raspberry Pi 12 SP2< 2.7.1-12.1
- libnettle&distro=SUSE Linux Enterprise Server for SAP Applications 12 SP2< 2.7.1-12.1
- libnettle&distro=SUSE Linux Enterprise Software Development Kit 12 SP2< 2.7.1-12.1
Redhat4 products
Mageia2 products
- nettle< 3.0-3.2.mga5
- nettle2.7< 2.7.1-6.2.mga5
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 16.10
Debian1 product
- nettle< 3.3-1 | < 2.4-3+deb7u1
Nettle_project1 product
- nettle< 3.3
Ubuntu1 product
- nettle< 2.7.1-1ubuntu0.2 | < 3.2-1ubuntu0.16.04.1
7 vendors · 15 products
References
20 links- www.openwall.com/lists/oss-security/2016/07/29/7Mailing ListX Refsource MLISTPatchThird Party Advisory
- git.lysator.liu.se/nettle/nettle/commit/3fe1d6549765ecfb24f0b80b2ed086fdc818bff3X Refsource CONFIRMPatchThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1362016X Refsource CONFIRMIssue TrackingThird Party AdvisoryVDB Entry
- rhn.redhat.com/errata/RHSA-2016-2582.htmlVendor AdvisoryX Refsource REDHATThird Party AdvisoryVDB Entry
Show all 20 references
- bugzilla.suse.com/991464REPORT
