The SUSE Linux Enterprise 11 SP3 LTSS kernel was updated to receive various security and bugfixes.
The following security bugs were fixed:
- CVE-2017-5715: Systems with microprocessors utilizing speculative execution and indirect branch prediction may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis (bnc#1068032).
The previous fix using CPU Microcode has been complemented by building the Linux Kernel with return trampolines aka 'retpolines'.
- CVE-2018-5332: In the Linux kernel the rds_message_alloc_sgs() function did not validate a value that is used during DMA page allocation, leading to a heap-based out-of-bounds write (related to the rds_rdma_extra_size function in net/rds/rdma.c) (bnc#1075621). - CVE-2018-5333: In the Linux kernel the rds_cmsg_atomic function in net/rds/rdma.c mishandled cases where page pinning fails or an invalid address is supplied, leading to an rds_atomic_free_op NULL pointer dereference (bnc#1075617). - CVE-2017-18017: The tcpmss_mangle_packet function in net/netfilter/xt_TCPMSS.c in the Linux kernel allowed remote attackers to cause a denial of service (use-after-free and memory corruption) or possibly have unspecified other impact by leveraging the presence of xt_TCPMSS in an iptables action (bnc#1074488). - CVE-2017-18079: drivers/input/serio/i8042.c in the Linux kernel allowed attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact because the port->exists value can change after it is validated (bnc#1077922). - CVE-2017-17741: The KVM implementation in the Linux kernel allowed attackers to obtain potentially sensitive information from kernel memory, aka a write_mmio stack-based out-of-bounds read, related to arch/x86/kvm/x86.c and include/trace/events/kvm.h (bnc#1073311). - CVE-2017-13215: A elevation of privilege vulnerability in the Upstream kernel skcipher. (bnc#1075908). - CVE-2018-1000004: In the Linux kernel a race condition vulnerability exists in the sound system, this can lead to a deadlock and denial of service condition (bnc#1076017).
The following non-security bugs were fixed:
- cdc-acm: apply quirk for card reader (bsc#1060279). - Enable CPU vulnerabilities reporting via sysfs - fork: clear thread stack upon allocation (bsc#1077560). - kaiser: Set _PAGE_NX only if supported (bnc#1012382, bnc#1076278). - kbuild: modversions for EXPORT_SYMBOL() for asm (bsc#1074621 bsc#1068032). - Move kABI fixup for retpolines to proper place. - powerpc/vdso64: Use double word compare on pointers (bsc#1070781). - s390: add ppa to the idle loop (bnc#1077406, LTC#163910). - s390/cpuinfo: show facilities as reported by stfle (bnc#1076849, LTC#163741). - storvsc: do not assume SG list is continuous when doing bounce buffers (bsc#1075410). - sysfs/cpu: Add vulnerability folder (bnc#1012382). - sysfs/cpu: Fix typos in vulnerability documentation (bnc#1012382). - sysfs: spectre_v2, handle spec_ctrl (bsc#1075994 bsc#1075091). - x86/acpi: Handle SCI interrupts above legacy space gracefully (bsc#1068984). - x86/acpi: Reduce code duplication in mp_override_legacy_irq() (bsc#1068984). - x86/boot: Fix early command-line parsing when matching at end (bsc#1068032). - x86/cpu: Factor out application of forced CPU caps (bsc#1075994 bsc#1075091). - x86/cpu: Implement CPU vulnerabilites sysfs functions (bnc#1012382). - x86/CPU: Sync CPU feature flags late (bsc#1075994 bsc#1075091). - x86/kaiser: Populate shadow PGD with NX bit only if supported by platform (bsc#1076154 bsc#1076278). - x86/kaiser: use trampoline stack for kernel entry. - x86/microcode/intel: Disable late loading on model 79 (bsc#1054305). - x86/microcode/intel: Extend BDW late-loading further with LLC size check (bsc#1054305). - x86/microcode/intel: Extend BDW late-loading with a revision check (bsc#1054305). - x86/microcode: Rescan feature flags upon late loading (bsc#1075994 bsc#1075091). - x86/retpolines/spec_ctrl: disable IBRS on !SKL if retpolines are active (bsc#1068032). - x86/spec_ctrl: handle late setting of X86_FEATURE_SPEC_CTRL properly (bsc#1075994 bsc#1075091). - x86/spectre_v2: fix ordering in IBRS initialization (bsc#1075994 bsc#1075091). - x86/spectre_v2: nospectre_v2 means nospec too (bsc#1075994 bsc#1075091).
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