CVE-2015-5195: canonical ubuntu_linux Improper Input Validation
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2015-5195DEBIAN-CVE-2015-5195
Published 21-07-2017Last modified 06-08-2024
Vulnerability summary
CVE-2015-5195 is a high (CVSS 7.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 8.75% chance of exploitation in the next 30 days, higher than 95.1% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
8.75%
0%100%
Low · +1.27 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 6 · Duplicates 1 · Related 1Timeline
- 21-07-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
ntp_openssl.m4 in ntpd in NTP before 4.2.7p112 allows remote attackers to cause a denial of service (segmentation fault) via a crafted statistics or filegen configuration command that is not enabled during compilation.
CVSS metrics
4 scores · 3 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 3 agree
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
8.75%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
+1.27 pp
From 7.48% on 19-09-2026
19-09-202619-10-2026
EPSS score8.75%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Redhat4 products
- enterprise_linux_desktop6.0 | 7.0
- enterprise_linux_hpc_node6.0 | 7.0
- enterprise_linux_server6.0 | 7.0
- enterprise_linux_workstation6.0 | 7.0
Debian2 products
- ntp< 1:4.2.8p3+dfsg-1
- debian_linuxEOL7.0 | 8.0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 15.04 | 15.10
Fedoraproject1 product
- fedoraEOL21 | 22 | 23
Ntp1 product
- ntp≤ 4.2.7
Ubuntu1 product
- ntp< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.5
6 vendors · 10 products
References
21 links- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlX Refsource CONFIRM
- github.com/ntp-project/ntp/commit/52e977d79a0c4ace997e5c74af429844da2f27beX Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
Show all 21 references
- www.openwall.com/lists/oss-security/2015/08/25/3Mailing ListX Refsource MLISTPatchThird Party AdvisoryREPORT
- lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2015-September/166992.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory