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The lookup_cb_cred function in fs/nfsd/nfs4callback.c in the nfsd4 subsystem in the Linux kernel before 2.6.31.2 attempts to access a credentials cache even when a client specifies the AUTH_NULL authentication flavor, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an NFSv4 mount request.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-2.6.27-16-serverUpgrade linux-image-2.6.15-55-sparc64-smpUpgrade linux-image-2.6.24-26-xenUpgrade linux-image-2.6.31-16-powerpc64-smpUpgrade linux-image-2.6.28-17-versatileUpgrade linux-image-2.6.15-55-serverUpgrade linux-image-2.6.15-55-server-bigironUpgrade usb-modules-2.6.24-26-sparc64-diUpgrade linux-image-2.6.24-26-serverUpgrade linux-image-2.6.24-26-mckinleyUpgrade linux-image-2.6.24-26-lpiacompatUpgrade linux-image-2.6.24-26-hppa64Upgrade linux-image-2.6.24-26-sparc64-smpUpgrade linux-image-2.6.27-16-virtualUpgrade linux-image-2.6.15-55-686Upgrade linux-image-2.6.31-16-ia64Upgrade linux-image-2.6.15-55-powerpcUpgrade linux-image-2.6.28-17-lpiaUpgrade linux-image-2.6.31-16-powerpc-smpUpgrade linux-image-2.6.28-17-serverUpgrade linux-image-2.6.24-26-powerpcUpgrade linux-image-2.6.24-26-sparc64Upgrade linux-image-2.6.15-55-mckinleyUpgrade linux-image-2.6.15-55-itanium-smpUpgrade linux-image-2.6.31-16-sparc64Upgrade linux-image-2.6.28-17-genericUpgrade linux-image-2.6.24-26-386Upgrade linux-image-2.6.24-26-genericUpgrade linux-image-2.6.15-55-hppa32-smpUpgrade linux-image-2.6.15-55-powerpc-smpUpgrade linux-image-2.6.31-16-genericUpgrade linux-image-2.6.15-55-amd64-k8Upgrade linux-image-2.6.31-16-powerpcUpgrade linux-image-2.6.15-55-amd64-xeonUpgrade linux-image-2.6.15-55-hppa64Upgrade linux-image-2.6.24-26-rtUpgrade linux-image-2.6.31-16-virtualUpgrade linux-image-2.6.24-26-hppa32Upgrade linux-image-2.6.28-17-virtualUpgrade linux-image-2.6.27-16-genericUpgrade linux-image-2.6.31-16-386Upgrade linux-image-2.6.15-55-hppa64-smpUpgrade linux-image-2.6.31-16-generic-paeUpgrade linux-image-2.6.24-26-lpiaUpgrade linux-image-2.6.15-55-sparc64Upgrade linux-image-2.6.15-55-amd64-serverUpgrade linux-image-2.6.28-17-imx51Upgrade linux-image-2.6.15-55-hppa32Upgrade linux-image-2.6.15-55-itaniumUpgrade linux-image-2.6.15-55-powerpc64-smpUpgrade linux-image-2.6.31-16-lpiaUpgrade linux-image-2.6.31-16-serverUpgrade linux-image-2.6.24-26-virtualUpgrade linux-image-2.6.24-26-itaniumUpgrade linux-image-2.6.24-26-openvzUpgrade linux-image-2.6.28-17-ixp4xxUpgrade linux-image-2.6.28-17-iop32xUpgrade linux-image-2.6.24-26-powerpc64-smpUpgrade linux-image-2.6.15-55-amd64-genericUpgrade linux-image-2.6.15-55-k7Upgrade linux-image-2.6.15-55-mckinley-smpUpgrade linux-image-2.6.31-16-sparc64-smpUpgrade linux-image-2.6.24-26-powerpc-smpUpgrade linux-image-2.6.15-55-386 | Nov 8, 2024 | Oct 30, 2009 |
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