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
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 7.64.0-1 |
Debian Fixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 7.64.0-1 |
| sid | Fixed | 7.64.0-1 |
| forky | Fixed | 7.64.0-1 |
| bullseye | Fixed | 7.64.0-1 |
| bookworm | Fixed | 7.64.0-1 |
Red Hat Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| 8 | Fixed | — |
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
- https://access.redhat.com/errata/RHSA-2019:3701
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.