Description
PJSIP is a free and open source multimedia communication library written in C. In 2.16 and earlier, there is a buffer overflow when decoding Opus audio frames due to insufficient buffer size validation in the Opus codec decode path. The FEC decode buffers (dec_frame[].buf) were allocated based on a PCM-derived formula: (sample_rate/1000) * 60 * channel_cnt * 2. At 8 kHz mono this yields only 960 bytes, but codec_parse() can output encoded frames up to MAX_ENCODED_PACKET_SIZE (1280) bytes via opus_repacketizer_out_range(). The three pj_memcpy() calls in codec_decode() copied input->size bytes without bounds checking, causing a heap buffer overflow.
INFO
Published Date :
2026-04-21T18:04:15.159Z
Last Modified :
2026-04-22T13:33:23.816Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2026-40614 vulnerability.
| Vendors | Products |
|---|---|
| Pjsip |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2026-40614.
