Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Ubuntu | — | Upgrade linux-image-2.6.12-10-sparc64-smpUpgrade linux-image-2.6.12-10-amd64-xeonUpgrade linux-image-2.6.15-27-server-bigironUpgrade linux-image-2.6.17-10-serverUpgrade linux-image-2.6.12-10-powerpcUpgrade linux-image-2.6.17-10-sparc64Upgrade linux-image-2.6.15-27-686Upgrade linux-image-2.6.12-10-amd64-k8Upgrade linux-image-2.6.15-27-powerpcUpgrade linux-image-2.6.17-10-386Upgrade linux-image-2.6.12-10-sparc64Upgrade linux-image-2.6.12-10-amd64-k8-smpUpgrade linux-image-2.6.15-27-amd64-genericUpgrade linux-image-2.6.17-10-powerpc64-smpUpgrade linux-image-2.6.12-10-powerpc-smpUpgrade linux-image-2.6.15-27-serverUpgrade linux-image-2.6.17-10-genericUpgrade linux-image-2.6.12-10-k7Upgrade linux-image-2.6.12-10-amd64-genericUpgrade linux-image-2.6.17-10-powerpcUpgrade linux-image-2.6.15-27-powerpc64-smpUpgrade linux-image-2.6.15-27-sparc64Upgrade linux-image-2.6.12-10-686Upgrade linux-image-2.6.12-10-k7-smpUpgrade linux-image-2.6.15-27-amd64-serverUpgrade linux-image-2.6.12-10-686-smpUpgrade linux-image-2.6.17-10-server-bigironUpgrade linux-image-2.6.15-27-386Upgrade linux-image-2.6.15-27-amd64-xeonUpgrade linux-patch-ubuntu-2.6.12Upgrade linux-image-2.6.15-27-powerpc-smpUpgrade linux-source-2.6.15Upgrade linux-image-2.6.15-27-k7Upgrade linux-image-2.6.12-10-386Upgrade linux-image-2.6.17-10-powerpc-smpUpgrade linux-image-2.6.17-10-sparc64-smpUpgrade linux-image-2.6.15-27-sparc64-smpUpgrade linux-image-2.6.12-10-powerpc64-smpUpgrade linux-image-2.6.15-27-amd64-k8 | Nov 8, 2024 | Oct 17, 2006 |
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub