AZL-86372
See a problem?- Import Source
- https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-86372.json
- JSON Data
- https://api.osv.dev/v1/vulns/AZL-86372
- Upstream
- Published
- 2026-05-11T18:16:37Z
- Modified
- 2026-08-30T05:26:50Z
- Summary
- CVE-2026-43894 affecting package jq 1.7.1-8
- Details
-
jq is a command-line JSON processor. In 1.8.1 and earlier, when decNumberFromString is given a number literal of INT_MAX-1 (2147483646) digits, the D2U() macro overflows during signed-int arithmetic. The wrapped negative value bypasses the heap-allocation size check, causes the function to use a 30-byte stack buffer, and then writes ≈715 million 16-bit units (≈1.4 GiB) at an offset 1.43 GiB below the stack frame. The written content is fully attacker-controlled (the parsed decimal digits, packed 3-per-unit).
- References