CVE & CISA-KEV Catalog

CVE-2024-34447

HIGH
7.5
CVSS v3
NVD

Description

An issue was discovered in the Bouncy Castle Crypto Package For Java before BC TLS Java 1.0.19 (ships with BC Java 1.78, BC Java (LTS) 2.73.6) and before BC FIPS TLS Java 1.0.19. When endpoint identification is enabled in the BCJSSE and an SSL socket is created without an explicit hostname (as happens with HttpsURLConnection), hostname verification could be performed against a DNS-resolved IP address in some situations, opening up a possibility of DNS poisoning.

CWE-297

How to fix

Remediation Available
bouncycastleDebian
Fixed in:1.80-1CVE-2024-34447
Fixed in:1.80-1CVE-2024-34447
bouncycastleUbuntu
Fixed in:1.51-4ubuntu1+esm1USN-8108-1
Fixed in:1.59-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.61-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.68-5ubuntu0.1~esm1USN-8108-1
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1
libbcjmail-javaUbuntu
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1
libbcmail-javaUbuntu
Fixed in:1.51-4ubuntu1+esm1USN-8108-1
Fixed in:1.59-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.61-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.68-5ubuntu0.1~esm1USN-8108-1
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1
libbcpg-javaUbuntu
Fixed in:1.51-4ubuntu1+esm1USN-8108-1
Fixed in:1.59-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.61-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.68-5ubuntu0.1~esm1USN-8108-1
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1
libbcpkix-javaUbuntu
Fixed in:1.51-4ubuntu1+esm1USN-8108-1
Fixed in:1.59-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.61-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.68-5ubuntu0.1~esm1USN-8108-1
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1
libbcprov-javaUbuntu
Fixed in:1.51-4ubuntu1+esm1USN-8108-1
Fixed in:1.59-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.61-1ubuntu0.1~esm1USN-8108-1
Fixed in:1.68-5ubuntu0.1~esm1USN-8108-1
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1
libbctls-javaUbuntu
Fixed in:1.68-5ubuntu0.1~esm1USN-8108-1
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1
libbcutil-javaUbuntu
Fixed in:1.77-1ubuntu0.1~esm1USN-8108-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityNone
AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Exploit Intelligence

0.77%probability of exploitation in 30 days
51stpercentile

Moderate risk: more likely to be exploited than 51% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-06-17.