Описание
Security update for xen
This update for xen fixes the following issues:
- CVE-2023-28746: Register File Data Sampling (bsc#1221332)
- CVE-2024-2193: Fixed GhostRace, a speculative race conditions. (bsc#1221334)
- CVE-2023-46841: Hhadow stack vs exceptions from emulation stubs (bsc#1219885)
Список пакетов
Image SLES15-SP5-Azure-3P
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Image SLES15-SP5-SAP-Azure-LI-BYOS
Image SLES15-SP5-SAP-Azure-LI-BYOS-Production
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Image SLES15-SP5-SAP-Hardened-Azure
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Image SLES15-SP5-SAPCAL-Azure
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SUSE Linux Enterprise Micro 5.5
SUSE Linux Enterprise Module for Basesystem 15 SP5
SUSE Linux Enterprise Module for Server Applications 15 SP5
openSUSE Leap 15.5
Ссылки
- Link for SUSE-SU-2024:1102-1
- E-Mail link for SUSE-SU-2024:1102-1
- SUSE Security Ratings
- SUSE Bug 1027519
- SUSE Bug 1219885
- SUSE Bug 1221332
- SUSE Bug 1221334
- SUSE CVE CVE-2023-28746 page
- SUSE CVE CVE-2023-46841 page
- SUSE CVE CVE-2024-2193 page
Описание
Information exposure through microarchitectural state after transient execution from some register files for some Intel(R) Atom(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
Затронутые продукты
Ссылки
- CVE-2023-28746
- SUSE Bug 1213456
- SUSE Bug 1221323
Описание
Recent x86 CPUs offer functionality named Control-flow Enforcement Technology (CET). A sub-feature of this are Shadow Stacks (CET-SS). CET-SS is a hardware feature designed to protect against Return Oriented Programming attacks. When enabled, traditional stacks holding both data and return addresses are accompanied by so called "shadow stacks", holding little more than return addresses. Shadow stacks aren't writable by normal instructions, and upon function returns their contents are used to check for possible manipulation of a return address coming from the traditional stack. In particular certain memory accesses need intercepting by Xen. In various cases the necessary emulation involves kind of replaying of the instruction. Such replaying typically involves filling and then invoking of a stub. Such a replayed instruction may raise an exceptions, which is expected and dealt with accordingly. Unfortunately the interaction of both of the above wasn't right: Recovery involves removal of a call frame from the (traditional) stack. The counterpart of this operation for the shadow stack was missing.
Затронутые продукты
Ссылки
- CVE-2023-46841
- SUSE Bug 1219885
Описание
A Speculative Race Condition (SRC) vulnerability that impacts modern CPU architectures supporting speculative execution (related to Spectre V1) has been disclosed. An unauthenticated attacker can exploit this vulnerability to disclose arbitrary data from the CPU using race conditions to access the speculative executable code paths.
Затронутые продукты
Ссылки
- CVE-2024-2193
- SUSE Bug 1217857