| 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 |
|---|
| italc (PTS) | jessie, jessie (lts) | 1:2.0.2+dfsg1-2+deb8u1 | vulnerable |
| stretch | 1:3.0.3+dfsg1-1+deb9u1 | vulnerable |
| libvncserver (PTS) | jessie, jessie (lts) | 0.9.9+dfsg2-6.1+deb8u8 | vulnerable |
| stretch (security) | 0.9.11+dfsg-1.3~deb9u6 | vulnerable |
| stretch (lts), stretch | 0.9.11+dfsg-1.3~deb9u7 | vulnerable |
| buster (security), buster, buster (lts) | 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) | jessie, jessie (lts) | 1.3.9-6.5+deb8u1 | fixed |
| stretch | 1:1.3.9-9+deb9u1 | fixed |
| buster | 1:1.3.9-9+deb10u1 | fixed |
| bullseye | 1:1.3.10-3 | fixed |
| bookworm | 1:1.3.10-7 | fixed |
| sid, trixie | 1:1.3.10-9 | 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