CVE-2008-5659 EXPLOIT
7.5
HIGH · CVSS 2.0 · EPSS 3.3% (pctl 88)
Patch early
A public exploit exists.
Description
The gnu.java.security.util.PRNG class in GNU Classpath 0.97.2 and earlier uses a predictable seed based on the system time, which makes it easier for context-dependent attackers to conduct brute force attacks against cryptographic routines that use this class for randomness, as demonstrated against DSA private keys.
Scoring
| CVSS | 7.5 (HIGH, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| EPSS | 3.35% — more likely to be exploited than 88% of all CVEs |
| Weakness | CWE-310 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2008-12-17 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| gnu | classpath |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | GNU Classpath 0.97.2 - 'gnu.java.security.util.PRNG' Class Entropy (1) | 2008-12-05 |
| exploit-db | GNU Classpath 0.97.2 - 'gnu.java.security.util.PRNG' Class Entropy (2) | 2008-12-05 |
References
- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38417
- http://www.openwall.com/lists/oss-security/2008/12/06/2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/47574
- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38417
- http://www.openwall.com/lists/oss-security/2008/12/06/2
- https://exchange.xforce.ibmcloud.com/vulnerabilities/47574
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