Medium severity · published Nov 23, 2023
CVE-2023-33202
Bouncy Castle for Java before 1.73 contains a potential Denial of Service (DoS) issue within the Bouncy Castle org.bouncycastle.openssl.PEMParser class
5.5
CVSS
1%
EPSS
No
On KEV
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.)
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.0% · higher than 63% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BC
Bouncy Castle For Java · Bouncycastle
before 1.73 · source: NVD
FJ
Fips Java Api · Bouncycastle
before 1.0.2.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-33202
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-33202
Product
https://bouncycastle.org
github.com
https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902023%E2%80%9033202
Exploit
https://github.com/bcgit/bc-java/wiki/CVE-2023-33202
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240125-0001/