CVE-2017-15105: canonical ubuntu_linux
CVSS: 5.3v3.0MediumModified
AliasesMGASA-2018-0091UBUNTU-CVE-2017-15105USN-3673-1DEBIAN-CVE-2017-15105DLA-1264-1DLA-1676-1
Published 23-01-2018Last modified 16-09-2024
Vulnerability summary
CVE-2017-15105 is a medium (CVSS 5.3) vulnerability in canonical ubuntu_linux. EPSS estimates a 3.16% chance of exploitation in the next 30 days, higher than 87.8% of scored vulnerabilities.
CVSS score
5.3/10
010
Medium · v3.0 (NVD)EPSS score
3.16%
0%100%
Low · +0.53 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 1 · Related 1Timeline
- 23-01-2018PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
A flaw was found in the way unbound before 1.6.8 validated wildcard-synthesized NSEC records. An improperly validated wildcard NSEC record could be used to prove the non-existence (NXDOMAIN answer) of an existing wildcard record, or trick unbound into accepting a NODATA proof.
CVSS metrics
4 scores · 3 sources · 2 versionsMedium 5.3Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:NSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- OSV · DebianEcosystem advisory · calculated5.3MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
3.16%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
+0.53 pp
From 2.63% on 19-09-2026
19-09-202619-10-2026
EPSS score3.16%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-358Improperly Implemented Security Check for StandardThe product does not implement or incorrectly implements one or more security-relevant checks as specified by the design of a standardized algorithm, protocol, or technique.
- CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
Affected systems
Debian2 products
- unbound< 1.7.1-1 | < 1.4.17-3+deb7u3 | < 1.4.22-3+deb8u4
- debian_linuxEOL7.0 | 8.0
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 17.10 | 18.04
Mageia1 product
- unbound< 1.6.8-1.mga6
Nlnet labs1 product
- unbound< 1.6.8
Nlnetlabs1 product
- unbound< 1.6.8
Ubuntu1 product
- unbound< 1.4.22-1ubuntu4.14.04.3 | < 1.5.8-1ubuntu1.1 | < 1.6.7-1ubuntu2.1
6 vendors · 7 products
References
11 links
lists.debian.org/debian-lts-announce/2019/02/msg00022.htmlMailing ListX Refsource MLISTThird Party Advisory- lists.debian.org/debian-lts-announce/2018/01/msg00039.htmlMailing ListX Refsource MLISTThird Party Advisory