Vulnerability · Published May 12, 2022 · Assigned by mitre

CVE-2021-42863

Critical 9.8

In plain English

A critical-severity security flaw in the iotjs package (Ubuntu). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities).

Severity (CVSS NVD)9.8Critical

Exploit odds (30 days)1.7%top 22.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A buffer overflow in ecma_builtin_typedarray_prototype_filter() in JerryScript version fe3a5c0 allows an attacker to construct a fake object or a fake arraybuffer with unlimited size.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Ubuntu:22.04:LTS	iotjs	no fix listed	UBUNTU-CVE-2021-42863

Affected products (as reported)

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

References

https://github.com/jerryscript-project/jerryscript/issues/4793 x_refsource_MISC
https://github.com/jerryscript-project/jerryscript/pull/4794 x_refsource_MISC