CVE-2020-24753

Public Exploit

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.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.29% Top 25%
Third-Party Advisory github.com Third-Party Advisory warcollar.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/objsys/oocborrt/commit/539851c66778f68a244633985f6f8d0df94ea3b3 third party advisory patch
https://warcollar.com/cve-2020-24753.html third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2020-24753?
CVE-2020-24753 has been scored as a critical severity vulnerability.
How to fix CVE-2020-24753?
To fix CVE-2020-24753, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-24753 being actively exploited in the wild?
It is possible that CVE-2020-24753 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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