critical
CVE-2018-0500
curl: Heap-based buffer overflow in Curl_smtp_escape_eob() when uploading data over SMTP
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat7.5CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Trivy's own label is CRITICAL. Rated critical by NVD, Photon OS. Rated lower by Red Hat (medium), Amazon (medium), Ubuntu (medium).
Description
Curl_smtp_escape_eob in lib/smtp.c in curl 7.54.1 to and including curl 7.60.0 has a heap-based buffer overflow that might be exploitable by an attacker who can control the data that curl transmits over SMTP with certain settings (i.e., use of a nonstandard --limit-rate argument or CURLOPT_BUFFERSIZE value).
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| Photon OS 1.0 | curl | 7.59.0-3.ph1 |
| Photon OS 2.0 | curl | 7.59.0-3.ph2 |
| alpine 3.10 | curl | 7.61.0-r0 |
| alpine 3.11 | curl | 7.61.0-r0 |
| alpine 3.12 | curl | 7.61.0-r0 |
| alpine 3.13 | curl | 7.61.0-r0 |
| alpine 3.14 | curl | 7.61.0-r0 |
| alpine 3.15 | curl | 7.61.0-r0 |
| alpine 3.16 | curl | 7.61.0-r0 |
| alpine 3.17 | curl | 7.61.0-r0 |
| alpine 3.18 | curl | 7.61.0-r0 |
| alpine 3.19 | curl | 7.61.0-r0 |
Show all 42 entries from 36 sources
| Source | Package | Fixed in |
|---|---|---|
| Photon OS 1.0 | curl | 7.59.0-3.ph1 |
| Photon OS 2.0 | curl | 7.59.0-3.ph2 |
| alpine 3.10 | curl | 7.61.0-r0 |
| alpine 3.11 | curl | 7.61.0-r0 |
| alpine 3.12 | curl | 7.61.0-r0 |
| alpine 3.13 | curl | 7.61.0-r0 |
| alpine 3.14 | curl | 7.61.0-r0 |
| alpine 3.15 | curl | 7.61.0-r0 |
| alpine 3.16 | curl | 7.61.0-r0 |
| alpine 3.17 | curl | 7.61.0-r0 |
| alpine 3.18 | curl | 7.61.0-r0 |
| alpine 3.19 | curl | 7.61.0-r0 |
| alpine 3.20 | curl | 7.61.0-r0 |
| alpine 3.21 | curl | 7.61.0-r0 |
| alpine 3.22 | curl | 7.61.0-r0 |
| alpine 3.23 | curl | 7.61.0-r0 |
| alpine 3.24 | curl | 7.61.0-r0 |
| alpine 3.5 | curl | 7.61.0-r0 |
| alpine 3.6 | curl | 7.61.0-r0 |
| alpine 3.7 | curl | 7.61.0-r0 |
| alpine 3.8 | curl | 7.61.0-r0 |
| alpine 3.9 | curl | 7.61.0-r0 |
| alpine edge | curl | 7.61.0-r0 |
| amazon linux 1 | curl | 7.61.1-7.91.amzn1 |
| amazon linux 1 | curl-debuginfo | 7.61.1-7.91.amzn1 |
| amazon linux 1 | libcurl | 7.61.1-7.91.amzn1 |
| amazon linux 1 | libcurl-devel | 7.61.1-7.91.amzn1 |
| amazon linux 2 | curl | 7.55.1-12.amzn2.0.5 |
| amazon linux 2 | curl-debuginfo | 7.55.1-12.amzn2.0.5 |
| amazon linux 2 | libcurl | 7.55.1-12.amzn2.0.5 |
| amazon linux 2 | libcurl-devel | 7.55.1-12.amzn2.0.5 |
| debian 11 | curl | 7.61.0-1 |
| debian 12 | curl | 7.61.0-1 |
| debian 13 | curl | 7.61.0-1 |
| debian 14 | curl | 7.61.0-1 |
| echo | curl | 7.61.0-1 |
| root.io debian 11 | rootio-curl | 7.61.0-1 |
| root.io debian 12 | rootio-curl | 7.61.0-1 |
| root.io debian 13 | rootio-curl | 7.61.0-1 |
| ubuntu 17.10 | curl | 7.55.1-1ubuntu2.6 |
| ubuntu 18.04 | curl | 7.58.0-2ubuntu3.2 |
| ubuntu 18.04-ESM | curl | 7.58.0-2ubuntu3.2 |
References
- http://www.securitytracker.com/id/1041280
- https://access.redhat.com/errata/RHSA-2018:2486
- https://access.redhat.com/security/cve/CVE-2018-0500
- https://curl.haxx.se/docs/adv_2018-70a2.html
- https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628
- https://nvd.nist.gov/vuln/detail/CVE-2018-0500
- https://security.gentoo.org/glsa/201807-04
- https://ubuntu.com/security/notices/USN-3710-1