CVE-2018-16842
Advisory lineage Upstream: 0 Downstream: 13
Modified
Published: 31 Oct 2018, 19:00
Last modified:15 Apr 2026, 20:56
Vulnerability Summary
Overall Risk (default)
high
70/100 CVSS Score
9.1 CRITICAL
v3.0 (nvd)
EPSS Score
0.16% LOW
0% probability +0.04%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
31 Oct 2018, 19:00
Published
Vulnerability first disclosed
15 Apr 2026, 20:56
Last Modified
Vulnerability information updated
Description
Curl versions 7.14.1 through 7.61.1 are vulnerable to a heap-based buffer over-read in the tool_msgs.c:voutf() function that may result in information exposure and denial of service.
CVSS Metrics
- v3.0•MEDIUM•Score: 4.4CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L
- v3.0•CRITICAL•Score: 9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
- v2.0•MEDIUM•Score: 6.4AV:N/AC:L/Au:N/C:P/I:N/A:P
EPSS Trends
Current EPSS score: 0.16%• Percentile: 37%
Techniques & Countermeasures
- CWE-125•Out-of-bounds Read
The product reads data past the end, or before the beginning, of the intended buffer.
Affected Systems
- canonical•ubuntu_linux
12.04 | 14.04 | 16.04 | 18.04 | 18.10
- debian•debian_linux
8.0 | 9.0
- haxx•curl
≥ 7.14.1, ≤ 7.61.1
- the curl project•curl:
from 7.14.1 to 7.61.1
References (11)
- https://security.gentoo.org/glsa/201903-03
- https://www.debian.org/security/2018/dsa-4331
- https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
- https://curl.haxx.se/docs/CVE-2018-16842.html
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16842
- http://www.securitytracker.com/id/1042014
- https://github.com/curl/curl/commit/d530e92f59ae9bb2d47066c3c460b25d2ffeb211
- https://usn.ubuntu.com/3805-2/
- https://usn.ubuntu.com/3805-1/
- https://access.redhat.com/errata/RHSA-2019:2181
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html