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gcc 4.3.x does not generate a cld instruction while compiling functions used for string manipulation such as memcpy and memmove on x86 and i386, which can prevent the direction flag (DF) from being reset in violation of ABI conventions and cause data to be copied in the wrong direction during signal handling in the Linux kernel, which might allow context-dependent attackers to trigger memory corruption. NOTE: this issue was originally reported for CPU consumption in SBCL.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Centos_linux | — | Upgrade kernel-xen-develUpgrade kernel-debug-develUpgrade kernel-PAEUpgrade kernel-debugUpgrade kernel-PAE-develUpgrade kernel-headersUpgrade kernel-develUpgrade kernel-xenUpgrade kernel-docUpgrade kernel | Dec 1, 2016 | Mar 17, 2008 |
| Debian | — | Upgrade glibc | Jul 30, 2024 | Mar 17, 2008 |
| Oracle_linux | — | Upgrade kernel | Oct 16, 2024 | Mar 17, 2008 |
| Suse | — | Upgrade kernel-pmac64Upgrade kernel-s390x-debugUpgrade kernel-s390-debugUpgrade kernel-umUpgrade kernel-debugUpgrade kernel-symsUpgrade kernel-bigsmpUpgrade kernel-sn2Upgrade kernel-xenUpgrade kernel-kdumpUpgrade um-host-install-initrdUpgrade kernel-s390Upgrade kernel-iseries64Upgrade kernel-smpUpgrade kernel-ppc64Upgrade um-host-kernelUpgrade kernel-s390xUpgrade suse-releaseUpgrade kernel-sourceUpgrade kernel-64k-pagesizeUpgrade kernel-pseries64Upgrade kernel-defaultUpgrade kernel-xenpae | Feb 17, 2015 | Mar 17, 2008 |
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