CVE-2023-33202

Description

Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bouncycastle.openssl.PEMParser class. This class parses OpenSSL PEM encoded streams containing X.509 certificates, PKCS8 encoded keys, and PKCS7 objects. Parsing a file that has crafted ASN.1 data through the PEMParser causes an OutOfMemoryError, which can enable a denial of service attack. (For users of the FIPS Java API: BC-FJA 1.0.2.3 and earlier are affected; BC-FJA 1.0.2.4 is fixed.)

How to fix CVE-2023-33202

To remediate CVE-2023-33202, upgrade the affected package to a fixed version below.

—no fix listed
—upgrade to 1.73 or later
—upgrade to 1.73 or later
—upgrade to 1.73 or later
—upgrade to 1.73 or later
—upgrade to 1.73 or later
—no fix listed
—upgrade to 1.73 or later
—upgrade to 1.73 or later
—upgrade to 1.73 or later

Is CVE-2023-33202 being exploited?

Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.

Affected packages (10)

from 0
from 0, < 1.73
from 0, < 1.73
from 0, < 1.73
from 0, < 1.73
from 0, < 1.73
from 0
from 0, < 1.73
from 0, < 1.73
from 0, < 1.73

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 3.1	MEDIUM5.5	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H