CVE-2024-53427
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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).
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
- EPSS
- 0.36% probability · 29th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-843
- Affected
- jqlang/jq
- Source
- cve@mitre.org
References
- https://gist.github.com/Ekkosun/a83870ce7f3b7813b9b462a395e8ad92Third Party Advisory
- https://github.com/jqlang/jq/blob/71c2ab509a8628dbbad4bc7b3f98a64aa90d3297/src/decNumber/decNumber.c#L3375Product
- https://github.com/jqlang/jq/issues/3196Exploit, Issue Tracking, Vendor Advisory
- https://github.com/jqlang/jq/issues/3296Issue Tracking, Vendor Advisory
- https://github.com/jqlang/jq/security/advisories/GHSA-x6c3-qv5r-7q22Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.