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CVE-2026-43894

Опубликовано: 13 мая 2026
Источник: msrc
CVSS3: 6.2
EPSS Низкий

Описание

jq: Wild stack write via signed-integer overflow in decNumber D2U() macro

EPSS

Процентиль: 5%
0.00158
Низкий

6.2 Medium

CVSS3

Связанные уязвимости

CVSS3: 6.2
ubuntu
3 месяца назад

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).

CVSS3: 6.2
redhat
3 месяца назад

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).

CVSS3: 6.2
nvd
3 месяца назад

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).

CVSS3: 6.2
debian
3 месяца назад

jq is a command-line JSON processor. In 1.8.1 and earlier, when decNum ...

CVSS3: 5.5
fstec
3 месяца назад

Уязвимость функции decNumberFromString() утилиты для обработки JSON-файлов jq, позволяющая нарушителю вызвать отказ в обслуживании

EPSS

Процентиль: 5%
0.00158
Низкий

6.2 Medium

CVSS3