CVE-2018-7182: canonical ubuntu_linux Out-of-bounds Read
CVSS: 7.5v3.0HighModified
AliasesUBUNTU-CVE-2018-7182DEBIAN-CVE-2018-7182
Published 06-03-2018Last modified 05-08-2024
Vulnerability summary
CVE-2018-7182 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 28.83% chance of exploitation in the next 30 days, higher than 98.1% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
28.83%
0%100%
High · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database
Advisory lineage
Upstream 0 · Downstream 9 · Related 8Timeline
- 06-03-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
The ctl_getitem method in ntpd in ntp-4.2.8p6 before 4.2.8p11 allows remote attackers to cause a denial of service (out-of-bounds read) via a crafted mode 6 packet with a ntpd instance from 4.2.8p6 through 4.2.8p10.
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
28.83%
Chance of exploitation in the next 30 days
Percentile
98%
Versus all other CVEs
30-day change
0.00 pp
From 28.83% on 18-09-2026
18-09-202618-10-2026
EPSS score28.83%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundntpd 4.2.8p10 - Out-of-Bounds Read (PoC)
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Canonical1 product
- ubuntu_linuxEOL17.10 | 18.04
Debian1 product
- ntpsec< 1.0.0+dfsg1-5
Netapp1 product
Ntp1 product
- ntp4.2.8:p10 | 4.2.8:p6 | 4.2.8:p7 | 4.2.8:p8 | 4.2.8:p9
Ubuntu1 product
- ntp< 1:4.2.8p10+dfsg-5ubuntu7.1
5 vendors · 5 products
References
17 links- packetstormsecurity.com/files/146631/Slackware-Security-Advisory-ntp-Updates.htmlX Refsource MISCThird Party AdvisoryVDB Entry
- security.freebsd.org/advisories/FreeBSD-SA-18:02.ntp.ascVendor AdvisoryX Refsource FREEBSDPatchThird Party Advisory
- www.securityfocus.com/archive/1/541824/100/0/threadedMailing ListX Refsource BUGTRAQThird Party AdvisoryVDB Entry
