CVE-2010-2524

The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a "cache stuffing" issue and MS-DFS referrals.

• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7
• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.htmlMailing List, Third Party Advisory
• http://marc.info/?l=oss-security&m=128072090331700&w=2Mailing List, Patch, Third Party Advisory
• http://marc.info/?l=oss-security&m=128078387328921&w=2Mailing List, Patch, Third Party Advisory
• http://marc.info/?l=oss-security&m=128080755321157&w=2Mailing List, Third Party Advisory
• http://secunia.com/advisories/43315Broken Link
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35Broken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:172Broken Link
• http://www.redhat.com/support/errata/RHSA-2010-0610.htmlBroken Link
• http://www.securityfocus.com/archive/1/516397/100/0/threadedThird Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
• http://www.vmware.com/security/advisories/VMSA-2011-0003.htmlPatch, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=612166Issue Tracking, Patch, Third Party Advisory
• http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4c0c03ca54f72fdd5912516ad0a23ec5cf01bda7
• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00004.htmlMailing List, Third Party Advisory
• http://marc.info/?l=oss-security&m=128072090331700&w=2Mailing List, Patch, Third Party Advisory
• http://marc.info/?l=oss-security&m=128078387328921&w=2Mailing List, Patch, Third Party Advisory
• http://marc.info/?l=oss-security&m=128080755321157&w=2Mailing List, Third Party Advisory
• http://secunia.com/advisories/43315Broken Link
• http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.35Broken Link
• http://www.mandriva.com/security/advisories?name=MDVSA-2010:172Broken Link
• http://www.redhat.com/support/errata/RHSA-2010-0610.htmlBroken Link
• http://www.securityfocus.com/archive/1/516397/100/0/threadedThird Party Advisory, VDB Entry
• http://www.ubuntu.com/usn/USN-1000-1Third Party Advisory
• http://www.vmware.com/security/advisories/VMSA-2011-0003.htmlPatch, Third Party Advisory
• https://bugzilla.redhat.com/show_bug.cgi?id=612166Issue Tracking, Patch, Third Party Advisory

Published

Sep 8, 2010

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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