Description
The do_change_type function in fs/namespace.c in the Linux kernel before 2.6.22 does not verify that the caller has the CAP_SYS_ADMIN capability, which allows local users to gain privileges or cause a denial of service by modifying the properties of a mountpoint.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Canonical / Ubuntu Linux6.06 – 6.06
- Canonical / Ubuntu Linux8.04 – 8.04
- Canonical / Ubuntu Linux7.10 – 7.10
- Canonical / Ubuntu Linux7.04 – 7.04
- Debian / debian_linux4.0 – 4.0
- Linux / Linux kernel2.6.22
- Novell / suse_linux_enterprise_desktop10.0 – 10.0
- Novell / suse_linux_enterprise_desktop10.0 – 10.0
- Novell / suse_linux_enterprise_server10.0 – 10.0
- Novell / suse_linux_enterprise_server10.0 – 10.0
- openSUSE / opensuse10.3 – 11.0
References
- VENDOR_ADVISORYhttp://www.debian.org/security/2008/dsa-1630
- MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/43696
- MISChttp://www.redhat.com/support/errata/RHSA-2008-0885.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2008-07/msg00012.html
- VENDOR_ADVISORYhttps://usn.ubuntu.com/637-1/
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10437
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2008-07/msg00007.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/31614
- VENDOR_ADVISORYhttp://secunia.com/advisories/30982
- MISChttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=ee6f958291e2a768fd727e7a67badfff0b67711a
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2008/07/08/4
- VENDOR_ADVISORYhttp://secunia.com/advisories/31551
- MISChttp://www.securityfocus.com/bid/30126
- VENDOR_ADVISORYhttp://secunia.com/advisories/32023
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=454388
- VENDOR_ADVISORYhttp://secunia.com/advisories/32759
- MISChttp://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2008/07/08/3
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2008-10/msg00003.html
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2008-11/msg00001.html