CVE-2019-3823
Description
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.
Related CPE's
References
CvssV3 impact
BaseSeverity | HIGH |
ConfidentialityImpact | NONE |
AttackComplexity | LOW |
Scope | UNCHANGED |
AttackVector | NETWORK |
AvailabilityImpact | HIGH |
IntegrityImpact | NONE |
PrivilegesRequired | NONE |
BaseScore | 7.5 |
VectorString | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Version | 3.0 |
UserInteraction | NONE |
CvssV2 impact
Version | 2.0 |
VectorString | AV:N/AC:L/Au:N/C:N/I:N/A:P |
AccessVector | NETWORK |
AccessComplexity | LOW |
Authentication | NONE |
ConfidentialityImpact | NONE |
IntegrityImpact | NONE |
AvailabilityImpact | PARTIAL |
BaseScore | 5 |