critical
CVE-2018-16842
curl: Heap-based buffer over-read in the curl tool warning formatting
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Red Hat3.6CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L
Trivy's own label is CRITICAL. Rated critical by NVD, Photon OS. Rated lower by Amazon (medium), Ubuntu (medium), Red Hat (low), Oracle (low).
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.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| Photon OS 1.0 | curl | 7.59.0-4.ph1 |
| Photon OS 2.0 | curl | 7.59.0-4.ph2 |
| Photon OS 3.0 | curl | 7.61.1-2.ph3 |
| alpine 3.10 | curl | 7.62.0-r0 |
| alpine 3.11 | curl | 7.62.0-r0 |
| alpine 3.12 | curl | 7.62.0-r0 |
| alpine 3.13 | curl | 7.62.0-r0 |
| alpine 3.14 | curl | 7.62.0-r0 |
| alpine 3.15 | curl | 7.62.0-r0 |
| alpine 3.16 | curl | 7.62.0-r0 |
| alpine 3.17 | curl | 7.62.0-r0 |
| alpine 3.18 | curl | 7.62.0-r0 |
Show all 61 entries from 45 sources
| Source | Package | Fixed in |
|---|---|---|
| Photon OS 1.0 | curl | 7.59.0-4.ph1 |
| Photon OS 2.0 | curl | 7.59.0-4.ph2 |
| Photon OS 3.0 | curl | 7.61.1-2.ph3 |
| alpine 3.10 | curl | 7.62.0-r0 |
| alpine 3.11 | curl | 7.62.0-r0 |
| alpine 3.12 | curl | 7.62.0-r0 |
| alpine 3.13 | curl | 7.62.0-r0 |
| alpine 3.14 | curl | 7.62.0-r0 |
| alpine 3.15 | curl | 7.62.0-r0 |
| alpine 3.16 | curl | 7.62.0-r0 |
| alpine 3.17 | curl | 7.62.0-r0 |
| alpine 3.18 | curl | 7.62.0-r0 |
| alpine 3.19 | curl | 7.62.0-r0 |
| alpine 3.20 | curl | 7.62.0-r0 |
| alpine 3.21 | curl | 7.62.0-r0 |
| alpine 3.22 | curl | 7.62.0-r0 |
| alpine 3.23 | curl | 7.62.0-r0 |
| alpine 3.24 | curl | 7.62.0-r0 |
| alpine 3.5 | curl | 7.61.1-r1 |
| alpine 3.6 | curl | 7.61.1-r1 |
| alpine 3.7 | curl | 7.61.1-r1 |
| alpine 3.8 | curl | 7.61.1-r1 |
| alpine 3.9 | curl | 7.62.0-r0 |
| alpine edge | curl | 7.62.0-r0 |
| amazon linux 1 | curl | 7.53.1-16.86.amzn1 |
| amazon linux 1 | curl-debuginfo | 7.53.1-16.86.amzn1 |
| amazon linux 1 | libcurl | 7.53.1-16.86.amzn1 |
| amazon linux 1 | libcurl-devel | 7.53.1-16.86.amzn1 |
| amazon linux 2 | curl | 7.61.1-9.amzn2.0.1 |
| amazon linux 2 | curl-debuginfo | 7.61.1-9.amzn2.0.1 |
| amazon linux 2 | libcurl | 7.61.1-9.amzn2.0.1 |
| amazon linux 2 | libcurl-devel | 7.61.1-9.amzn2.0.1 |
| debian 11 | curl | 7.62.0-1 |
| debian 12 | curl | 7.62.0-1 |
| debian 13 | curl | 7.62.0-1 |
| debian 14 | curl | 7.62.0-1 |
| debian 8 | curl | 7.38.0-4+deb8u13 |
| debian 9 | curl | 7.52.1-5+deb9u8 |
| echo | curl | 7.62.0-1 |
| Oracle Linux 7 | curl | 7.29.0-54.0.1.el7 |
| Oracle Linux 7 | libcurl | 7.29.0-54.0.1.el7 |
| Oracle Linux 7 | libcurl-devel | 7.29.0-54.0.1.el7 |
| Red Hat | curl | no fix listed |
| Red Hat | httpd24-curl | no fix listed |
| Red Hat | httpd24-libcurl | no fix listed |
| Red Hat | httpd24-libcurl-devel | no fix listed |
| Red Hat | libcurl | no fix listed |
| Red Hat | libcurl-devel | no fix listed |
| Red Hat | rh-dotnet21-curl | no fix listed |
| Red Hat | rh-dotnet21-libcurl | no fix listed |
| Red Hat | rh-dotnet21-libcurl-devel | no fix listed |
| root.io debian 11 | rootio-curl | 7.62.0-1 |
| root.io debian 12 | rootio-curl | 7.62.0-1 |
| root.io debian 13 | rootio-curl | 7.62.0-1 |
| ubuntu 14.04 | curl | 7.35.0-1ubuntu2.19 |
| ubuntu 14.04-ESM | curl | 7.35.0-1ubuntu2.19 |
| ubuntu 16.04 | curl | 7.47.0-1ubuntu2.11 |
| ubuntu 16.04-ESM | curl | 7.47.0-1ubuntu2.11 |
| ubuntu 18.04 | curl | 7.58.0-2ubuntu3.5 |
| ubuntu 18.04-ESM | curl | 7.58.0-2ubuntu3.5 |
| ubuntu 18.10 | curl | 7.61.0-1ubuntu2.2 |
References
- http://www.securitytracker.com/id/1042014
- https://access.redhat.com/errata/RHSA-2019:2181
- https://access.redhat.com/security/cve/CVE-2018-16842
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16842
- https://curl.haxx.se/docs/CVE-2018-16842.html
- https://github.com/curl/curl/commit/d530e92f59ae9bb2d47066c3c460b25d2ffeb211
- https://linux.oracle.com/cve/CVE-2018-16842.html
- https://linux.oracle.com/errata/ELSA-2019-2181.html
All 18 references
- https://lists.debian.org/debian-lts-announce/2018/11/msg00005.html
- https://nvd.nist.gov/vuln/detail/CVE-2018-16842
- https://security.gentoo.org/glsa/201903-03
- https://ubuntu.com/security/notices/USN-3805-1
- https://ubuntu.com/security/notices/USN-3805-2
- https://usn.ubuntu.com/3805-1/
- https://usn.ubuntu.com/3805-2/
- https://www.cve.org/CVERecord?id=CVE-2018-16842
- https://www.debian.org/security/2018/dsa-4331
- https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html