CVE-2018-0500

Name: CVE-2018-0500
Creator: NVD / NIST
Published: 2018-07-11T13:29:00.317+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 6.43%

Last modified Jun 17, 2026

CVE-2018-0500 is a vulnerability of currently unknown severity. 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).. EPSS estimates a 6.43% chance of exploitation in the next 30 days.

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).

Metrics

EPSS Probability

6.43%

92.8th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Haxx	Curl	>= 7.54.1, <= 7.60.0
Canonical	Ubuntu Linux	17.10
Canonical	Ubuntu Linux	18.04

References

http://www.securitytracker.com/id/1041280Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2486Third Party Advisory
https://curl.haxx.se/docs/adv_2018-70a2.htmlExploit, Patch, Vendor Advisory
https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628Patch, Third Party Advisory
https://security.gentoo.org/glsa/201807-04Third Party Advisory
https://usn.ubuntu.com/3710-1/Third Party Advisory
http://www.securitytracker.com/id/1041280Third Party Advisory, VDB Entry
https://access.redhat.com/errata/RHSA-2018:2486Third Party Advisory
https://curl.haxx.se/docs/adv_2018-70a2.htmlExploit, Patch, Vendor Advisory
https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628Patch, Third Party Advisory
https://security.gentoo.org/glsa/201807-04Third Party Advisory
https://usn.ubuntu.com/3710-1/Third Party Advisory

Timeline

Published: Jul 11, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-0500?

How severe is CVE-2018-0500?

Severity scoring for CVE-2018-0500 is pending analysis. The EPSS model estimates a 6.43% probability of exploitation in the next 30 days.

How do I fix CVE-2018-0500?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-0500?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST