| Name | CVE-2019-15680 |
| Description | TightVNC code version 1.3.10 contains null pointer dereference in HandleZlibBPP function, which results Denial of System (DoS). This attack appear to be exploitable via network connectivity. |
| 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-2045-1 |
| Debian Bugs | 945364 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| libvncserver (PTS) | buster | 0.9.11+dfsg-1.3+deb10u4 | vulnerable |
| buster (security) | 0.9.11+dfsg-1.3+deb10u5 | vulnerable |
| bullseye | 0.9.13+dfsg-2+deb11u1 | vulnerable |
| sid, trixie, bookworm | 0.9.14+dfsg-1 | vulnerable |
| tightvnc (PTS) | buster | 1:1.3.9-9+deb10u1 | fixed |
| bullseye | 1:1.3.10-3 | fixed |
| sid, trixie, bookworm | 1:1.3.10-7 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.openwall.com/lists/oss-security/2018/12/10/5
https://github.com/sunweaver/libvncserver/commit/85d00057b5daf71675462c9b175d8cb2d47cd0e1
Non-issue in libvncserver's case: https://github.com/LibVNC/libvncserver/issues/359#issuecomment-599202068