جزئیات آسیب‌پذیری

decNumberCopy in decNumber.c in jq through 1.7.1 does not properly consider that NaN is interpreted as numeric, which has a resultant stack-based buffer overflow and out-of-bounds write, as demonstrated by use of --slurp with subtraction, such as a filter of .-. when the input has a certain form of digit string with NaN (e.g., "1 NaN123" immediately followed by many more digits).

• https://github.com/jqlang/jq/issues/3196
• https://gist.github.com/Ekkosun/a83870ce7f3b7813b9b462a395e8ad92
• https://github.com/jqlang/jq/blob/71c2ab509a8628dbbad4bc7b3f98a64aa90d3297/src/decNumber/decNumber.c#L3375
• https://github.com/jqlang/jq/security/advisories/GHSA-x6c3-qv5r-7q22
• https://github.com/jqlang/jq/issues/3296