CVE-2009-3238

Public Exploit

Description

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."

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.24%
Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03836en_us third party advisory
http://www.ubuntu.com/usn/USN-852-1 third party advisory vendor advisory
http://patchwork.kernel.org/patch/21766/ patch broken link
https://bugzilla.redhat.com/show_bug.cgi?id=519692 issue tracking permissions required
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30 exploit vendor advisory broken link
http://secunia.com/advisories/37351 third party advisory broken link
https://bugzilla.redhat.com/show_bug.cgi?id=499785 issue tracking permissions required
http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html mailing list vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11168 vdb entry signature broken link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8a0a9bd4db63bc45e3017bedeafbd88d0eb84d02 broken link
http://www.redhat.com/support/errata/RHSA-2009-1438.html vendor advisory broken link
http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html mailing list vendor advisory
http://secunia.com/advisories/37105 third party advisory broken link

Frequently Asked Questions

What is the severity of CVE-2009-3238?
CVE-2009-3238 has been scored as a medium severity vulnerability.
How to fix CVE-2009-3238?
To fix CVE-2009-3238, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-3238 being actively exploited in the wild?
It is possible that CVE-2009-3238 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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