CVE-2021-45958

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.

USN-6629-1 — ujson vulnerabilities

Affected: Ubuntu:Pro:16.04:LTS: ujson, Ubuntu:Pro:18.04:LTS: ujson, Ubuntu:Pro:22.04:LTS: ujson

It was discovered that UltraJSON incorrectly handled certain input with a large amount of indentation. An attacker could possibly use this issue to crash the program, resulting in a denial of service. (CVE-2021-45958)

Jake Miller discovered that UltraJSON incorrectly decoded certain characters. An attacker could possibly use this issue to cause key confusion and overwrite values in dictionaries. (CVE-2022-31116)

It was discovered that UltraJSON incorrectly handled an error when reallocating a buffer for string decoding. An attacker could possibly use this issue to corrupt memory. (CVE-2022-31117)

Most recent entries from all

CVE-2021-45958

USN-6629-1 — ujson vulnerabilities