Vulnerability in Mindwerks WildMIDI

[ Description ]Official description

WildMIDI through 0.5.0 contains a heap out-of-bounds read vulnerability in the HMP parser _WM_ParseNewHmp() that allows attackers to read beyond buffers via underflowed chunk lengths. Attackers can supply a crafted .hmp file with a chunk length of 0-12 that wraps to roughly 4 GB, crashing applications or exposing heap bytes through WildMidi_GetInfo().

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• github.com/Mindwerks/wildmidi
• github.com/Mindwerks/wildmidi/blob/340472ed4633d139d30c660b90eca03c1320e593/src/f_hmp.c
• github.com/Mindwerks/wildmidi/blob/340472ed4633d139d30c660b90eca03c1320e593/src/interna…
• hackmd.io/@haind-pwn/wildmidi-hmp-chunk-length-underflow-oob-read
• www.vulncheck.com/advisories/wildmidi-through-0.5.0-heap-out-of-bounds-read-via-wm-pars…