CVE-2013-4345

Summary

Off-by-one error in the get_prng_bytes function in crypto/ansi_cprng.c in the Linux kernel through 3.11.4 makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via multiple requests for small amounts of data, leading to improper management of the state of the consumed data.

Affected Software

Weaknesses

• n/a

ADP Enrichment

CVE Program Container

Additional References

• http://www.ubuntu.com/usn/USN-2065-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1007690
• http://www.ubuntu.com/usn/USN-2110-1
• http://rhn.redhat.com/errata/RHSA-2013-1490.html
• http://rhn.redhat.com/errata/RHSA-2013-1645.html
• http://www.ubuntu.com/usn/USN-2076-1
• http://www.ubuntu.com/usn/USN-2158-1
• http://www.ubuntu.com/usn/USN-2070-1
• http://www.ubuntu.com/usn/USN-2071-1
• http://www.ubuntu.com/usn/USN-2109-1
• http://rhn.redhat.com/errata/RHSA-2013-1449.html
• http://www.securityfocus.com/bid/62740
• http://www.ubuntu.com/usn/USN-2074-1
• http://www.ubuntu.com/usn/USN-2068-1
• http://marc.info/?l=linux-crypto-vger&m=137942122902845&w=2
• http://www.ubuntu.com/usn/USN-2072-1
• http://www.ubuntu.com/usn/USN-2075-1
• http://www.ubuntu.com/usn/USN-2064-1

References

• http://www.ubuntu.com/usn/USN-2065-1
• https://bugzilla.redhat.com/show_bug.cgi?id=1007690
• http://www.ubuntu.com/usn/USN-2110-1
• http://rhn.redhat.com/errata/RHSA-2013-1490.html
• http://rhn.redhat.com/errata/RHSA-2013-1645.html
• http://www.ubuntu.com/usn/USN-2076-1
• http://www.ubuntu.com/usn/USN-2158-1
• http://www.ubuntu.com/usn/USN-2070-1
• http://www.ubuntu.com/usn/USN-2071-1
• http://www.ubuntu.com/usn/USN-2109-1
• http://rhn.redhat.com/errata/RHSA-2013-1449.html
• http://www.securityfocus.com/bid/62740
• http://www.ubuntu.com/usn/USN-2074-1
• http://www.ubuntu.com/usn/USN-2068-1
• http://marc.info/?l=linux-crypto-vger&m=137942122902845&w=2
• http://www.ubuntu.com/usn/USN-2072-1
• http://www.ubuntu.com/usn/USN-2075-1
• http://www.ubuntu.com/usn/USN-2064-1

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