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Vulnerability · Published Nov 23, 2023 · Assigned by mitre

CVE-2023-33202

Medium 5.5

In plain English

A medium-severity security flaw in the bouncycastle package (Debian). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 63% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)5.5Medium
Exploit odds (30 days)1.0%top 37.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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.)

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12bouncycastleno fix listedDEBIAN-CVE-2023-33202
Debian:13bouncycastle1.77-1DEBIAN-CVE-2023-33202
Debian:14bouncycastle1.77-1DEBIAN-CVE-2023-33202
Mavenorg.bouncycastle:bcpkix-jdk18on1.73GHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-ext-jdk15on1.73GHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-ext-jdk161.73GHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-jdk141.73GHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-jdk151.73GHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-jdk15onno fix listedGHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-jdk15to181.73GHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-jdk161.73GHSA-wjxj-5m7g-mg7q
Mavenorg.bouncycastle:bcprov-jdk18on1.73GHSA-wjxj-5m7g-mg7q

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References