Description
Race condition in the find_keyring_by_name function in security/keys/keyring.c in the Linux kernel 2.6.34-rc5 and earlier allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via keyctl session commands that trigger access to a dead keyring that is undergoing deletion by the key_cleanup function.
CVSS breakdown
CVSS 3.1
Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Affected products
- Debian / debian_linux5.0 – 5.0
- Linux / Linux kernel2.6.34 – 2.6.34
- Linux / Linux kernel2.6.34 – 2.6.34
- Linux / Linux kernel2.6.34 – 2.6.34
- Linux / Linux kernel2.6.34 – 2.6.34
- Linux / Linux kernel2.6.34
- Linux / Linux kernel2.6.34 – 2.6.34
- openSUSE / opensuse11.1 – 11.1
- SUSE / linux_enterprise_desktop11 – 11
- SUSE / linux_enterprise_high_availability_extension11 – 11
- SUSE / linux_enterprise_server11 – 11
References
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/04/27/2
- MAILING_LISThttp://lists.opensuse.org/opensuse-security-announce/2010-07/msg00006.html
- MAILING_LISThttp://marc.info/?l=linux-kernel&m=127292492727029&w=2
- MISChttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9715
- MISChttps://patchwork.kernel.org/patch/94664/
- MISChttps://exchange.xforce.ibmcloud.com/vulnerabilities/58254
- MAILING_LISThttp://marc.info/?l=linux-kernel&m=127192182917857&w=2
- MISChttp://www.redhat.com/support/errata/RHSA-2010-0474.html
- VENDOR_ADVISORYhttp://secunia.com/advisories/40645
- VENDOR_ADVISORYhttp://secunia.com/advisories/43315
- MAILING_LISThttp://marc.info/?l=linux-kernel&m=127274294622730&w=2
- MISChttps://patchwork.kernel.org/patch/94038/
- MAILING_LISThttp://www.openwall.com/lists/oss-security/2010/04/28/2
- VENDOR_ADVISORYhttp://secunia.com/advisories/40218
- VENDOR_ADVISORYhttp://www.vmware.com/security/advisories/VMSA-2011-0003.html
- MISChttps://bugzilla.redhat.com/show_bug.cgi?id=585094
- VENDOR_ADVISORYhttp://www.debian.org/security/2010/dsa-2053
- MISChttp://www.securityfocus.com/bid/39719
- MISChttp://www.securityfocus.com/archive/1/516397/100/0/threaded
- VENDOR_ADVISORYhttp://secunia.com/advisories/39830
- VENDOR_ADVISORYhttp://www.vupen.com/english/advisories/2010/1857