Buffer overflow in Haxx Curl
CVE-2018-0500
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., us…
Vulnerability class: Buffer Overflow
EPSS: 0.064 (93.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Haxx Curl
- Canonical Ubuntu_linux — versions 17.10, 18.04
- N/a Curl Before 7.61.0 — versions curl before 7.61.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@debian.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_SECTRACK)
- security@debian.org (x_refsource_CONFIRM, Patch, Third Party Advisory)
- security@debian.org (x_refsource_CONFIRM, Exploit, Patch, Vendor Advisory)
- security@debian.org (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
- security@debian.org (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
- security@debian.org (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2018-0500?
- CVE-2018-0500 is a critical-severity vulnerability in Haxx Curl, classified under Out-of-bounds Write. CVSS score: 9.8/10. Published 2018-07-11.
- How severe is CVE-2018-0500?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2018-0500 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.