CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
82.5%
The ecc_256_modq function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8803.
Vendor | Product | Version | CPE |
---|---|---|---|
nettle_project | nettle | * | cpe:2.3:a:nettle_project:nettle:*:*:*:*:*:*:*:* |
canonical | ubuntu_linux | 14.04 | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* |
canonical | ubuntu_linux | 15.10 | cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* |
opensuse | leap | 42.1 | cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:* |
opensuse | opensuse | 13.1 | cpe:2.3:o:opensuse:opensuse:13.1:*:*:*:*:*:*:* |
opensuse | opensuse | 13.2 | cpe:2.3:o:opensuse:opensuse:13.2:*:*:*:*:*:*:* |
lists.opensuse.org/opensuse-updates/2016-02/msg00091.html
lists.opensuse.org/opensuse-updates/2016-02/msg00093.html
lists.opensuse.org/opensuse-updates/2016-02/msg00100.html
rhn.redhat.com/errata/RHSA-2016-2582.html
www.openwall.com/lists/oss-security/2016/02/02/2
www.openwall.com/lists/oss-security/2016/02/03/1
www.securityfocus.com/bid/84272
www.ubuntu.com/usn/USN-2897-1
blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
AI Score
Confidence
High
EPSS
Percentile
82.5%