CVE-2023-0045
highPriorität · verfolgen · 41EPSS 0.024 · 84. PerzentilExploit · PoCDEEUNLRUUSEPSS · bewertet 2026-10-23
The current implementation of the prctl syscall does not issue an IBPB immediately during the syscall. The ib_prctl_set function updates the Thread Information Flags (TIFs) for the task and updates the SPEC_CTRL MSR on the function __speculation_ctrl_update, but the IBPB is only issued on the next schedule, when the TIF bits are checked. This leaves the victim vulnerable to values already injected on the BTB, prior to the prctl syscall. The patch that added the support for the conditional mitigation via prctl (ib_prctl_set) dates back to the kernel 4.9.176. We recommend upgrading past commit a664ec9158eeddd75121d39c9a0758016097fa96
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
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cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 4.7–7.5
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
Exploits (2)
Öffentlicher Proof-of-Concept- und Exploit-Code.
- ASkyeye/CVE-2023-0045ASkyeye/CVE-2023-0045PoC · poc_in_github
- es0j/CVE-2023-0045es0j/CVE-2023-0045PoC · poc_in_github
betroffene Produkte (107)
Betroffene Produkte und Versionsbereiche.
- IBM InfoSphere Information Serveralle Versionencert_bundDEcpe:/a:ibm:infosphere_information_server:-
Advisories (5)
Hersteller- und Ökosystem-Meldungen dazu.
- NCSC-2025-0061Kwetsbaarheden verholpen in Siemens productenNL2025-02-14csaf · ncsc_nlNL
Siemens heeft kwetsbaarheden verholpen in diverse producten als APOGEE, Opcenter, RUGGEDCOM, SCALANCE, SIMATIC, SIPROTEC en Teamcenter.
- SSA-769027SSA-769027: Multiple Vulnerabilities fixed in SCALANCE W700 IEEE 802.11ax devices before V3.0.02025-02-11csaf · siemens_psirtDE
SCALANCE W-700 IEEE 802.11ax family devices are affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
- WID-SEC-W-2023-0281Linux Kernel: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2023-02-05csaf · cert_bundDE
Ein lokaler Angreifer kann eine Schwachstelle im Linux Kernel ausnutzen, um Sicherheitsvorkehrungen zu umgehen.
- WID-SEC-W-2024-0794Dell ECS: Mehrere SchwachstellenDeutsch2024-04-04csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell ECS ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, Sicherheitsvorkehrungen zu umgehen oder einen Denial of Service Zustand herbeizuführen.
- ICSA-25-044-09Siemens SCALANCE W700 IEEE 802.11ax2025-02-11icsa · cisa_csaf_otUS
SCALANCE W-700 IEEE 802.11ax family devices are affected by multiple vulnerabilities. Siemens has released new versions for the affected products and recommends to update to the latest versions.
auch bekannt als (3)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (33)
Externe Belege — Patches, Meldungen, Analysen.
- https://access.redhat.com/security/cve/cve-2023-0045cnnvd
- https://cxsecurity.com/cveshow/CVE-2023-0045/cnnvd
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a664ec9158eeddd75121d39c9a0758016097fa96Patchcnnvd
- https://git.kernel.org/tip/a664ec9158eeddd75121d39c9a0758016097fa96cnnvd
- https://github.com/google/security-research/security/advisories/GHSA-9x5g-vmxf-4qj8cnnvd
- https://lists.debian.org/debian-lts-announce/2023/05/msg00005.htmlcnnvd
- https://lists.debian.org/debian-lts-announce/2023/05/msg00006.htmlcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2023-0045cnnvd
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