CVE-2011-2492

The bluetooth subsystem in the Linux kernel before 3.0-rc4 does not properly initialize certain data structures, which allows local users to obtain potentially sensitive information from kernel memory via a crafted getsockopt system call, related to (1) the l2cap_sock_getsockopt_old function in net/bluetooth/l2cap_sock.c and (2) the rfcomm_sock_getsockopt_old function in net/bluetooth/rfcomm/sock.c.

• CWE-200

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d03e971cf403305217b8e62db3a2e5ad2d6263f
• http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
• http://permalink.gmane.org/gmane.linux.bluez.kernel/12909Broken Link
• http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
• http://securitytracker.com/id?1025778Third Party Advisory, VDB Entry
• http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4Broken Link
• http://www.openwall.com/lists/oss-security/2011/06/24/2Mailing List, Patch, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2011/06/24/3Mailing List, Patch, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=703019Issue Tracking, Patch, Third Party Advisory
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=8d03e971cf403305217b8e62db3a2e5ad2d6263f
• http://marc.info/?l=bugtraq&m=139447903326211&w=2Third Party Advisory
• http://permalink.gmane.org/gmane.linux.bluez.kernel/12909Broken Link
• http://rhn.redhat.com/errata/RHSA-2011-0927.htmlThird Party Advisory
• http://securitytracker.com/id?1025778Third Party Advisory, VDB Entry
• http://www.kernel.org/pub/linux/kernel/v3.0/testing/ChangeLog-3.0-rc4Broken Link
• http://www.openwall.com/lists/oss-security/2011/06/24/2Mailing List, Patch, Third Party Advisory
• http://www.openwall.com/lists/oss-security/2011/06/24/3Mailing List, Patch, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=703019Issue Tracking, Patch, Third Party Advisory

Published

Jul 28, 2011

Last Modified

Jun 16, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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