CVE-2019-3823
moderate-risk
Published 2019-02-06
libcurl versions from 7.34.0 to before 7.64.0 are vulnerable to a heap out-of-bounds read in the code handling the end-of-response for SMTP. If the buffer passed to `smtp_endofresp()` isn't NUL terminated and contains no character ending the parsed number, and `len` is set to 5, then the `strtol()` call reads beyond the allocated buffer. The read contents will not be returned to the caller.
Do I need to act?
~
1.7% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.3/10
Medium
NETWORK
/ LOW complexity
Affected Products (11)
References (24)
Third Party Advisory
http://www.securityfocus.com/bid/106950
Third Party Advisory
https://security.gentoo.org/glsa/201903-03
Third Party Advisory
https://usn.ubuntu.com/3882-1/
Third Party Advisory
https://www.debian.org/security/2019/dsa-4386
Third Party Advisory
http://www.securityfocus.com/bid/106950
Third Party Advisory
https://security.gentoo.org/glsa/201903-03
and 4 more references
38
/ 100
moderate-risk
Severity
18/34 · Moderate
Exploitability
4/34 · Minimal
Exposure
16/34 · Moderate