CVE-2018-16842

Aliases:RHSA-2019:2181DEBIAN-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
2.1% LOW
2% probability +1.97%
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
  • v3.0•LOW•Score: 3.6CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L
  • v2.0•MEDIUM•Score: 6.4AV:N/AC:L/Au:N/C:P/I:N/A:P

EPSS Trends

Current EPSS score: 2.10%• Percentile: 81%

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•curl

    < 7.62.0-1 | < 7.62.0-1 | < 7.62.0-1 | < 7.62.0-1

  • debian•debian_linux

    8.0 | 9.0

  • haxx•curl

    ≥ 7.14.1, ≤ 7.61.1

  • redhat•curl

    < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7

  • redhat•curl-debuginfo

    < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7

  • redhat•libcurl

    < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7

  • redhat•libcurl-devel

    < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7 | < 0:7.29.0-54.el7

  • the curl project•curl:

    from 7.14.1 to 7.61.1

References (21)