Описание
Security update for qemu
This update for qemu fixes several issues.
This security issue was fixed:
-
CVE-2018-3639: Spectre v4 vulnerability mitigation support for KVM guests (bsc#1092885).
Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis.
This patch permits the new x86 cpu feature flag named 'ssbd' to be presented to the guest, given that the host has this feature, and KVM exposes it to the guest as well.
For this feature to be enabled please use the qemu commandline -cpu $MODEL,+spec-ctrl,+ssbd so the guest OS can take advantage of the feature.
spec-ctrl and ssbd support is also required in the host.
This non-security issue was fixed:
- bsc#1070615: Add new look up path 'sys/class/tpm' for tpm cancel path
Список пакетов
SUSE Linux Enterprise Desktop 12 SP3
SUSE Linux Enterprise Server 12 SP3
SUSE Linux Enterprise Server for SAP Applications 12 SP3
Ссылки
- Link for SUSE-SU-2018:1378-1
- E-Mail link for SUSE-SU-2018:1378-1
- SUSE Security Ratings
- SUSE Bug 1070615
- SUSE Bug 1092885
- SUSE CVE CVE-2018-3639 page
Описание
Systems with microprocessors utilizing speculative execution and speculative execution of memory reads before the addresses of all prior memory writes are known may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka Speculative Store Bypass (SSB), Variant 4.
Затронутые продукты
Ссылки
- CVE-2018-3639
- SUSE Bug 1074701
- SUSE Bug 1085235
- SUSE Bug 1085308
- SUSE Bug 1087078
- SUSE Bug 1087082
- SUSE Bug 1092631
- SUSE Bug 1092885
- SUSE Bug 1094912
- SUSE Bug 1098813
- SUSE Bug 1100394
- SUSE Bug 1102640
- SUSE Bug 1105412
- SUSE Bug 1111963
- SUSE Bug 1172781
- SUSE Bug 1172782
- SUSE Bug 1172783
- SUSE Bug 1173489
- SUSE Bug 1178658
- SUSE Bug 1201877