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."
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Affected products
- Canonical / Ubuntu Linux9.04 – 9.04
- Canonical / Ubuntu Linux6.06 – 6.06
- Canonical / Ubuntu Linux8.04 – 8.04
- Canonical / Ubuntu Linux8.10 – 8.10
- Linux / Linux kernel2.6.30
- openSUSE / opensuse11.0 – 11.0
- SUSE / linux_enterprise_desktop10 – 10
- SUSE / linux_enterprise_server10 – 10
References
- MISChttps://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03836en_us
- VENDOR_ADVISORYhttp://www.ubuntu.com/usn/USN-852-1
- MISChttp://patchwork.kernel.org/patch/21766/
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=519692
- MISChttp://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.30
- VENDOR_ADVISORYhttp://secunia.com/advisories/37351
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=499785
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11168
- MISChttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8a0a9bd4db63bc45e3017bedeafbd88d0eb84d02
- MISChttp://www.redhat.com/support/errata/RHSA-2009-1438.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2009-11/msg00005.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/37105