CVE-2019-3823

Name	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.
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more)
References	DLA-1672-1, DSA-4386-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
curl (PTS)	buster	7.64.0-4+deb10u2	fixed
	buster (security)	7.64.0-4+deb10u6	fixed
	bullseye (security), bullseye	7.74.0-1.3+deb11u7	fixed
	bookworm, sid	7.88.1-10	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin
curl	source	jessie	7.38.0-4+deb8u14	DLA-1672-1
curl	source	stretch	7.52.1-5+deb9u9	DSA-4386-1
curl	source	(unstable)	7.64.0-1

Notes

https://curl.haxx.se/docs/CVE-2019-3823.html
Fixed by: https://github.com/curl/curl/commit/39df4073e5413fcdbb5a38da0c1ce6f1c0ceb484
Introduced by: https://github.com/curl/curl/commit/2766262a68688c1dd8143f9c4be84b46c408b70a