CVE-2009-3238
The get_random_int function in drivers/char/random.c in the Linux kernel before 2.6.30 produces insufficiently random numbers, which allows attackers to predict the return value, and possibly defeat protection mechanisms based on randomization, via vectors that leverage the function's tendency to "return the same value over and over again for long stretches of time."
Key facts
- CVSS score
- 5.5 (v3.1)
- Severity
- MEDIUM
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N- Weakness (CWE)
- CWE-338
- EPSS score
- 1.6% (76th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2009-3221)
- Published
- September 18, 2009
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2009-3221 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- canonical / ubuntu linux
- linux / linux kernel
- opensuse / opensuse
- suse / linux enterprise desktop
- suse / linux enterprise server
References
- http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8a0a9bd4db63bc45e3017bedeafbd88d0eb84d02(Broken Link)
- http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html(Mailing List)
- http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html(Mailing List)
- http://patchwork.kernel.org/patch/21766/(Broken Link, Patch)
- http://secunia.com/advisories/37105(Broken Link)
- http://secunia.com/advisories/37351(Broken Link)
- http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30(Broken Link, Exploit, Vendor Advisory)
- http://www.redhat.com/support/errata/RHSA-2009-1438.html(Broken Link)
- http://www.ubuntu.com/usn/USN-852-1(Third Party Advisory)
- https://bugzilla.redhat.com/show_bug.cgi?id=499785(Issue Tracking, Permissions Required)
- https://bugzilla.redhat.com/show_bug.cgi?id=519692(Issue Tracking, Permissions Required)
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11168(Broken Link)
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03836en_us(Third Party Advisory)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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