Buffer overflow in Objective Open Cbor Run-Time Project
CVE-2020-24753
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.
EPSS: 0.026 (84.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Objective_open_cbor_run-time_project Objective_open_cbor_run-time
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2020-24753?
- CVE-2020-24753 is a critical-severity vulnerability in Objective Open Cbor Run-Time Project, classified under Improper Handling of Exceptional Conditions. CVSS score: 9.8/10. Published 2020-09-17.
- How severe is CVE-2020-24753?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2020-24753 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.