CVE-2018-14629: canonical ubuntu_linux Uncontrolled Resource Consumption
Vulnerability summary
CVE-2018-14629 is a medium (CVSS 6.5) Uncontrolled Resource Consumption vulnerability in canonical ubuntu_linux. EPSS estimates a 5.19% chance of exploitation in the next 30 days, higher than 92.3% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 6 · Related 3Timeline
- 28-11-2018PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
Description
A denial of service vulnerability was discovered in Samba's LDAP server before versions 4.7.12, 4.8.7, and 4.9.3. A CNAME loop could lead to infinite recursion in the server. An unprivileged local attacker could create such an entry, leading to denial of service.
CVSS metrics
6 scores · 5 sources · 2 versions- NVDNIST6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
5.19%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.19% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.redhat.com)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
- CWE-835Loop with Unreachable Exit Condition ('Infinite Loop')The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
Affected systems
Debian2 products
- samba< 2:4.9.2+dfsg-2
- debian_linuxEOL8.0 | 9.0
[unknown]1 product
- sambaEOL4.7.12 | 4.8.7 | 4.9.3
Alpine1 product
- samba≥ 4.0.0, < 4.8.11-r0 | ≥ 4.0.0, < 4.6.16-r2 | ≥ 4.0.0, < 4.7.6-r2
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 18.10
Samba1 product
- samba≥ 4.0.0, < 4.7.12 | ≥ 4.8.0, < 4.8.7 | ≥ 4.8.8, < 4.9.3
Ubuntu1 product
- samba< 2:4.3.11+dfsg-0ubuntu0.14.04.19 | < 2:4.3.11+dfsg-0ubuntu0.16.04.18 | < 2:4.7.6+dfsg~ubuntu-0ubuntu2.5
6 vendors · 7 products
References
15 links
lists.debian.org/debian-lts-announce/2018/12/msg00005.htmlMailing ListX Refsource MLISTThird Party Advisory- bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14629X Refsource CONFIRMExploitIssue TrackingThird Party Advisory