CVE-2015-5194: canonical ubuntu_linux Improper Input Validation
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2015-5194DEBIAN-CVE-2015-5194
Published 21-07-2017Last modified 06-08-2024
Vulnerability summary
CVE-2015-5194 is a high (CVSS 7.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 6.48% chance of exploitation in the next 30 days, higher than 93.6% of scored vulnerabilities.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
6.48%
0%100%
Low · +0.95 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 7 · Related 2Timeline
- 21-07-2017PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
The log_config_command function in ntp_parser.y in ntpd in NTP before 4.2.7p42 allows remote attackers to cause a denial of service (ntpd crash) via crafted logconfig commands.
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
6.48%
Chance of exploitation in the next 30 days
Percentile
94%
Versus all other CVEs
30-day change
+0.95 pp
From 5.54% on 18-09-2026
18-09-202618-10-2026
EPSS score6.48%
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
- linux_enterprise_debuginfo11:sp2 | 11:sp3
- linux_enterprise_server10:sp4 | 11:sp2 | 11:sp3
- manager2.1
- manager_proxy2.1
- openstack_cloud5
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
Ntp1 product
- ntp≤ 4.2.7
Ubuntu1 product
- ntp< 1:4.2.6.p5+dfsg-3ubuntu2.14.04.5
7 vendors · 15 products
References
24 links- lists.opensuse.org/opensuse-security-announce/2016-07/msg00026.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.htmlX Refsource CONFIRM
- bk1.ntp.org/ntp-dev/?PAGE=patch&REV=4c4fc141LwvcoGp-lLGhkAFp3ZvtrAX Refsource CONFIRMIssue TrackingPatchVendor Advisory
- github.com/ntp-project/ntp/commit/553f2fa65865c31c5e3c48812cfd46176cffdd27X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
Show all 24 references
- lists.fedoraproject.org/pipermail/package-announce/2015-November/170926.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory
- www.openwall.com/lists/oss-security/2015/08/25/3Mailing ListX Refsource MLISTPatchThird Party AdvisoryREPORT
- lists.opensuse.org/opensuse-security-announce/2016-08/msg00042.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2016-05/msg00048.htmlVendor AdvisoryX Refsource SUSEThird Party Advisory
- lists.fedoraproject.org/pipermail/package-announce/2015-October/169167.htmlVendor AdvisoryX Refsource FEDORAThird Party Advisory