ujson: UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from en...
CVE-2021-45958 is fixed in 3 products on 1 platform, first by python3-ujson 1.35-4ubuntu0.1, released December 31, 2021. It is not reported as exploited. Patch Radar priority: Routine.
UltraJSON (aka ujson) through 5.1.0 has a stack-based buffer overflow in Buffer_AppendIndentUnchecked (called from encode). Exploitation can, for example, use a large amount of indentation.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-ujson · Ubuntu 18.04.6 LTS (bionic) | 1.35-2ubuntu0.1~esm1 | python-ujson 1.35-2ubuntu0.1~esm1 | Jul 5, 2022 |
| python3-ujson · Ubuntu 18.04.6 LTS (bionic) | 1.35-2ubuntu0.1~esm1 | python3-ujson 1.35-2ubuntu0.1~esm1 | Jul 5, 2022 |
| python3-ujson · Ubuntu 20.04 LTS (focal) | 1.35-4ubuntu0.1 | python3-ujson 1.35-4ubuntu0.1 | Dec 31, 2021 |
| python3-ujson · Ubuntu 22.04.1 LTS (jammy) | 5.1.0-1ubuntu0.1~esm1 | python3-ujson 5.1.0-1ubuntu0.1~esm1 | Jul 5, 2022 |
| ujson · Debian 12.15 (bookworm) | 5.2.0-1 | DEBIAN-CVE-2021-45958 | Jan 1, 2022 |
| ujson · Debian 13.5 (trixie) | 5.2.0-1 | DEBIAN-CVE-2021-45958 | Jan 1, 2022 |
| ujson · Debian 14 | 5.2.0-1 | DEBIAN-CVE-2021-45958 | Jan 1, 2022 |
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