CVE-2019-3823
Published: 6 February 2019
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
curl Launchpad, Ubuntu, Debian |
hirsute |
Released
(7.64.0-1ubuntu1)
|
| bionic |
Released
(7.58.0-2ubuntu3.6)
|
|
| cosmic |
Released
(7.61.0-1ubuntu2.3)
|
|
| disco |
Released
(7.64.0-1ubuntu1)
|
|
| eoan |
Released
(7.64.0-1ubuntu1)
|
|
| focal |
Released
(7.64.0-1ubuntu1)
|
|
| groovy |
Released
(7.64.0-1ubuntu1)
|
|
| trusty |
Released
(7.35.0-1ubuntu2.20)
|
|
| upstream |
Released
(7.64.0)
|
|
| xenial |
Released
(7.47.0-1ubuntu2.12)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |