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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2019-3823
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2019-3823.html
Vendor advisory: arch — https://security.archlinux.org/ASA-201902-9
Vendor advisory: arch — https://security.archlinux.org/ASA-201902-13
Vendor advisory: arch — https://security.archlinux.org/ASA-201902-12
Vendor advisory: arch — https://security.archlinux.org/ASA-201902-11
Vendor advisory: arch — https://security.archlinux.org/ASA-201902-10
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| arch | fixed | 7.64.0-1 | |
| sles | affected | | |
| debian | bookworm | fixed | 7.64.0-1 |
| debian | bullseye | fixed | 7.64.0-1 |
| debian | forky | fixed | 7.64.0-1 |
| debian | sid | fixed | 7.64.0-1 |
| debian | trixie | fixed | 7.64.0-1 |
References
- https://security.archlinux.org/ASA-201902-10
- https://security.archlinux.org/ASA-201902-11
- https://security.archlinux.org/ASA-201902-12
- https://security.archlinux.org/ASA-201902-13
- https://security.archlinux.org/ASA-201902-9
- https://www.suse.com/security/cve/CVE-2019-3823.html
- https://security-tracker.debian.org/tracker/CVE-2019-3823
Verify integrity in audit chain (admin only). AS-IS.