CVE-2022-23462: Stack Buffer Overflow in iowow

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2022-10-21 · updated 2026-06-17
Weakness: CWE-120

Description

IOWOW is a C utility library and persistent key/value storage engine. Versions 1.4.15 and prior contain a stack buffer overflow vulnerability that allows for Denial of Service (DOS) when it parses scientific notation numbers present in JSON. A patch for this issue is available at commit a79d31e4cff1d5a08f665574b29fd885897a28fd in the `master` branch of the repository. There are no workarounds other than applying the patch.

Affected products

Softmotions iowow: through 1.4.15

References

https://github.com/Softmotions/iowow/commit/a79d31e4cff1d5a08f665574b29fd885897a28fd
https://securitylab.github.com/advisories/GHSL-2022-066_iowow/
https://github.com/Softmotions/iowow/commit/a79d31e4cff1d5a08f665574b29fd885897a28fd
https://securitylab.github.com/advisories/GHSL-2022-066_iowow/

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