bound certificate list and entry lengths in mg_tls_recv_cert#3581
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alhudz wants to merge 1 commit into
Open
bound certificate list and entry lengths in mg_tls_recv_cert#3581alhudz wants to merge 1 commit into
alhudz wants to merge 1 commit into
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Member
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@alhudz could you report this to the https://github.com/cesanta/mongoose/security/advisories please ? |
Author
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Sure, will do. I'll file it through the advisories form with the repro details and reference this branch there. Want me to close this public PR once that's up, or leave it for you to link the fix? |
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mg_tls_recv_cert uses the wire certificate-list and per-entry lengths without bounding them against recv_len, so a crafted peer Certificate message drives the reads at cert+certsz past the rtls buffer.