ulp/sdp/sdp_proc.c in the ib_sdp module (aka ib_sdp.ko) in the ofa_kernel package in the InfiniBand driver implementation in OpenFabrics Enterprise Distribution (OFED) before 1.5.3 does not properly handle certain non-array variables, which allows local users to cause a denial of service (stack memory corruption and system crash) by reading the /proc/net/sdpstats file.

References

• https://nvd.nist.gov/vuln/detail/CVE-2011-3345
• https://exchange.xforce.ibmcloud.com/vulnerabilities/69631
• http://git.openfabrics.org/git?p=ofed_1_5/linux-2.6.git;a=commit;h=04bb801a31825d1559c4670253e1bea1291a1af8
• http://secunia.com/advisories/45861
• http://www.openwall.com/lists/oss-security/2011/09/06/3
• http://www.openwall.com/lists/oss-security/2011/09/07/1
• http://www.openwall.com/lists/oss-security/2011/09/07/3
• http://www.securityfocus.com/bid/49486
• http://git.openfabrics.org/git?p=ofed_1_5/linux-2.6.git%3Ba=commit%3Bh=04bb801a31825d1559c4670253e1bea1291a1af8