CVE-2015-8803: canonical ubuntu_linux 7PK - Security Features
CVSS: 9.8v3.0CriticalModified
AliasesUBUNTU-CVE-2015-8803DEBIAN-CVE-2015-8803
Published 23-02-2016Last modified 06-08-2024
Vulnerability summary
CVE-2015-8803 is a critical (CVSS 9.8) 7PK - Security Features vulnerability in canonical ubuntu_linux. EPSS estimates a 4.21% chance of exploitation in the next 30 days, higher than 90.8% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.0 (NVD)EPSS score
4.21%
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 4 · Related 2Timeline
- 23-02-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The ecc_256_modp 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-2015-8805.
CVSS metrics
4 scores · 3 sources · 2 versionsCritical 9.8Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
High 7.5Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:P/I:P/A:PSourcesSingle source
EPSS trend
Probability
4.21%
Chance of exploitation in the next 30 days
Percentile
91%
Versus all other CVEs
30-day change
0.00 pp
From 4.21% on 18-09-2026
18-09-202618-10-2026
EPSS score4.21%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-2547PK - Security FeaturesSoftware security is not security software. Here we're concerned with topics like authentication, access control, confidentiality, cryptography, and privilege management.
- CWE-310Cryptographic IssuesWeaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.
Affected systems
Canonical1 product
- ubuntu_linuxEOL14.04 | 15.10
Debian1 product
- nettle< 3.2-1
Nettle_project1 product
- nettle≤ 3.1.1
Ubuntu1 product
- nettle< 2.7.1-1ubuntu0.1
5 vendors · 6 products
References
19 links- lists.lysator.liu.se/pipermail/nettle-bugs/2015/003028.htmlMailing ListX Refsource MLISTVendor AdvisoryREPORT
- lists.fedoraproject.org/pipermail/package-announce/2016-February/177473.htmlVendor AdvisoryX Refsource FEDORA
- git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4dX Refsource CONFIRMPatch
Show all 19 references
- lists.fedoraproject.org/pipermail/package-announce/2016-February/176807.htmlVendor AdvisoryX Refsource FEDORA
- lists.fedoraproject.org/pipermail/package-announce/2016-February/177229.htmlVendor AdvisoryX Refsource FEDORA
