| Name | CVE-2019-3863 |
| Description | A flaw was found in libssh2 before 1.8.1. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used as an index to copy memory causing in an out of bounds memory write error. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-1730-1, DSA-4431-1, ELA-99-1 |
| Debian Bugs | 924965 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| libssh2 (PTS) | jessie, jessie (lts) | 1.4.3-4.1+deb8u7 | fixed |
| stretch (security) | 1.7.0-1+deb9u2 | fixed | |
| stretch (lts), stretch | 1.7.0-1+deb9u3 | fixed | |
| buster | 1.8.0-2.1 | fixed | |
| buster (security) | 1.8.0-2.1+deb10u1 | fixed | |
| bullseye | 1.9.0-2 | fixed | |
| bookworm | 1.10.0-3 | fixed | |
| sid, trixie | 1.11.0-4.1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| libssh2 | source | wheezy | 1.4.2-1.1+deb7u3 | ELA-99-1 | ||
| libssh2 | source | jessie | 1.4.3-4.1+deb8u2 | DLA-1730-1 | ||
| libssh2 | source | stretch | 1.7.0-1+deb9u1 | DSA-4431-1 | ||
| libssh2 | source | (unstable) | 1.8.0-2.1 | 924965 |
https://www.libssh2.org/CVE-2019-3863.html
Patch: https://libssh2.org/1.8.0-CVE/CVE-2019-3863.patch
https://github.com/libssh2/libssh2/pull/315