CVE-2018-0500
9.8
CRITICAL · CVSS 3.0 · EPSS 6.4% (pctl 93)
In your normal cycle
Critical by CVSS (9.8), but no sign of active exploitation.
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).
Scoring
| CVSS | 9.8 (CRITICAL, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 6.35% — more likely to be exploited than 93% of all CVEs |
| Weakness | CWE-787 |
| On CISA KEV | no |
| Public exploit | none known |
| Published | 2018-07-11 |
| Last modified | 2026-06-17 |
Affected (2)
| Vendor | Product |
|---|---|
| canonical | ubuntu linux |
| haxx | curl |
References
- http://www.securitytracker.com/id/1041280
- https://access.redhat.com/errata/RHSA-2018:2486
- https://curl.haxx.se/docs/adv_2018-70a2.html
- https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628
- https://security.gentoo.org/glsa/201807-04
- https://usn.ubuntu.com/3710-1/
- http://www.securitytracker.com/id/1041280
- https://access.redhat.com/errata/RHSA-2018:2486
- https://curl.haxx.se/docs/adv_2018-70a2.html
- https://github.com/curl/curl/commit/ba1dbd78e5f1ed67c1b8d37ac89d90e5e330b628
- https://security.gentoo.org/glsa/201807-04
- https://usn.ubuntu.com/3710-1/
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