| Name | CVE-2020-13775 |
| Description | ZNC 1.8.0 up to 1.8.1-rc1 allows authenticated users to trigger an application crash (with a NULL pointer dereference) if echo-message is not enabled and there is no network. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 962105 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| znc (PTS) | jessie, jessie (lts) | 1.4-2+deb8u2 | fixed |
| stretch (security), stretch (lts), stretch | 1.6.5-1+deb9u2 | fixed |
| buster | 1.7.2-3 | fixed |
| bullseye (security), bullseye | 1.8.2-2+deb11u1 | fixed |
| bookworm (security), bookworm | 1.8.2-3.1+deb12u1 | fixed |
| sid, trixie | 1.9.1-2 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| znc | source | wheezy | (unfixed) | end-of-life | | |
| znc | source | jessie | (not affected) | | | |
| znc | source | stretch | (not affected) | | | |
| znc | source | buster | (not affected) | | | |
| znc | source | (unstable) | 1.8.1-1 | | | 962105 |
Notes
[buster] - znc <not-affected> (Vulnerable code introduced later)
[stretch] - znc <not-affected> (Vulnerable code introduced later)
[jessie] - znc <not-affected> (Vulnerable code introduced later)
Fixed by: https://github.com/znc/znc/commit/2390ad111bde16a78c98ac44572090b33c3bd2d8 (znc-1.8.1-rc1)
Introduced with: https://github.com/znc/znc/commit/d229761821da38d984a9e4098ad96842490dc001 (znc-1.8.0)