CVE-2020-24753

CRITICAL

Objective Open CBOR Run-time < 2020-08-12 - Memory Corruption via CBOR Major Type 3 Text String Decoding

Title source: llm
STIX 2.1

Description

A memory corruption vulnerability in Objective Open CBOR Run-time (oocborrt) in versions before 2020-08-12 could allow an attacker to execute code via crafted Concise Binary Object Representation (CBOR) input to the cbor2json decoder. An uncaught error while decoding CBOR Major Type 3 text strings leads to the use of an attacker-controllable uninitialized stack value. This can be used to modify memory, causing a crash or potentially exploitable heap corruption.

References (2)

Core 2
Core References
Exploit, Third Party Advisory x_refsource_misc
https://warcollar.com/cve-2020-24753.html

Scores

CVSS v3 9.8
EPSS 0.0264
EPSS Percentile 83.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-755 CWE-787 CWE-908
Status published
Products (1)
objective_open_cbor_run-time_project/objective_open_cbor_run-time < 2020-08-12
Published Sep 17, 2020
Tracked Since Feb 18, 2026