znc.cpp in ZNC before 0.092 allows remote authenticated users to cause a denial of service (crash) by requesting traffic statistics when there is an active unauthenticated connection, which triggers a NULL pointer dereference, as demonstrated using (1) a traffic link in the web administration pages or (2) the traffic command in the /znc shell.
| Software | From | Fixed in |
|---|---|---|
| znc / znc | 0.074 | 0.074.x |
| znc / znc | 0.044 | 0.044.x |
| znc / znc | 0.072 | 0.072.x |
| znc / znc | 0.062 | 0.062.x |
| znc / znc | 0.045 | 0.045.x |
| znc / znc | 0.052 | 0.052.x |
| znc / znc | 0.058 | 0.058.x |
| znc / znc | 0.080 | 0.080.x |
| znc / znc | 0.043 | 0.043.x |
| znc / znc | 0.056 | 0.056.x |
| znc / znc | 0.078 | 0.078.x |
| znc / znc | 0.050 | 0.050.x |
| znc / znc | - | 0.090.x |
| znc / znc | 0.034 | 0.034.x |
| znc / znc | 0.076 | 0.076.x |
| znc / znc | 0.070 | 0.070.x |
| znc / znc | 0.064 | 0.064.x |
| znc / znc | 0.068 | 0.068.x |
| znc / znc | 0.054 | 0.054.x |
| znc / znc | 0.060 | 0.060.x |
| znc / znc | 0.041 | 0.041.x |
| znc / znc | 0.047 | 0.047.x |
| znc / znc | 0.066 | 0.066.x |