Описание
ELSA-2017-2795: kernel security update (IMPORTANT)
[2.6.32-696.10.3.OL6]
- Update genkey [bug 25599697]
[2.6.32-696.10.3]
- [fs] binfmt_elf.c:load_elf_binary(): return -EINVAL on zero-length mappings (Petr Matousek) [1492959 1492961] {CVE-2017-1000253}
- [fs] binfmt_elf.c: fix bug in loading of PIE binaries (Petr Matousek) [1492959 1492961] {CVE-2017-1000253}
Обновленные пакеты
Oracle Linux 6
Oracle Linux x86_64
kernel
2.6.32-696.10.3.el6
kernel-abi-whitelists
2.6.32-696.10.3.el6
kernel-debug
2.6.32-696.10.3.el6
kernel-debug-devel
2.6.32-696.10.3.el6
kernel-devel
2.6.32-696.10.3.el6
kernel-doc
2.6.32-696.10.3.el6
kernel-firmware
2.6.32-696.10.3.el6
kernel-headers
2.6.32-696.10.3.el6
perf
2.6.32-696.10.3.el6
python-perf
2.6.32-696.10.3.el6
Oracle Linux i686
kernel
2.6.32-696.10.3.el6
kernel-abi-whitelists
2.6.32-696.10.3.el6
kernel-debug
2.6.32-696.10.3.el6
kernel-debug-devel
2.6.32-696.10.3.el6
kernel-devel
2.6.32-696.10.3.el6
kernel-doc
2.6.32-696.10.3.el6
kernel-firmware
2.6.32-696.10.3.el6
kernel-headers
2.6.32-696.10.3.el6
perf
2.6.32-696.10.3.el6
python-perf
2.6.32-696.10.3.el6
Связанные CVE
Связанные уязвимости
Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.
Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.
Linux distributions that have not patched their long-term kernels with https://git.kernel.org/linus/a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (committed on April 14, 2015). This kernel vulnerability was fixed in April 2015 by commit a87938b2e246b81b4fb713edb371a9fa3c5c3c86 (backported to Linux 3.10.77 in May 2015), but it was not recognized as a security threat. With CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE enabled, and a normal top-down address allocation strategy, load_elf_binary() will attempt to map a PIE binary into an address range immediately below mm->mmap_base. Unfortunately, load_elf_ binary() does not take account of the need to allocate sufficient space for the entire binary which means that, while the first PT_LOAD segment is mapped below mm->mmap_base, the subsequent PT_LOAD segment(s) end up being mapped above mm->mmap_base into the are that is supposed to be the "gap" between the stack and the binary.
Linux distributions that have not patched their long-term kernels with ...
