CVE-2018-0500

Public Exploit

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).

Category

9.8
CVSS
Severity: Critical
CVSS 3.0 •
CVSS 2.0 •
EPSS 1.84% Top 20%
Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory haxx.se
Affected: n/a curl before 7.61.0
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1041280 third party advisory vdb entry
https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628 third party advisory patch
https://curl.haxx.se/docs/adv_2018-70a2.html patch vendor advisory exploit
https://security.gentoo.org/glsa/201807-04 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:2486 third party advisory vendor advisory
https://usn.ubuntu.com/3710-1/ third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-0500?
CVE-2018-0500 has been scored as a critical severity vulnerability.
How to fix CVE-2018-0500?
To fix CVE-2018-0500, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-0500 being actively exploited in the wild?
It is possible that CVE-2018-0500 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~2% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2018-0500?
CVE-2018-0500 affects n/a curl before 7.61.0.
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