Vulnerability · Published Sep 17, 2020 · Assigned by mitre

CVE-2020-24753

Critical 9.8

In plain English

A critical-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.6% (higher than 86% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical

Exploit odds (30 days)2.6%top 14.3% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

https://github.com/objsys/oocborrt/commit/539851c66778f68a244633985f6f8d0df94ea3b3 x_refsource_MISC
https://warcollar.com/cve-2020-24753.html x_refsource_MISC