CVE-2020-10768
lowPriorität · verfolgen · 22EPSS 0.004 · 34. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
A flaw was found in the Linux Kernel before 5.8-rc1 in the prctl() function, where it can be used to enable indirect branch speculation after it has been disabled. This call incorrectly reports it as being 'force disabled' when it is not and opens the system to Spectre v2 attacks. The highest threat from this vulnerability is to confidentiality.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenSIMATIC RF160B (6GT2003-0FA00)siemens_psirt
Update to V2.2 or later version
- MitigationSIMATIC RF160B (6GT2003-0FA00)cisa_csaf_ot
Siemens has released a new version (V2.2) for SIMATIC RF160B and recommends to update to the latest version.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · low–medium · 2.1–5.5
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (32)
Betroffene Produkte und Versionsbereiche.
Advisories (3)
Hersteller- und Ökosystem-Meldungen dazu.
- SSA-770721SSA-770721: Multiple Vulnerabilities in SIMATIC RF160B before V2.22024-03-12csaf · siemens_psirtDE
SIMATIC RF160B contain multiple vulnerabilities of different types that could allow an attacker to execute arbitrary code within the context of a privileged process. Siemens has released a new version for SIMATIC RF160B and recommends to update to the latest version.
- ICSA-24-074-07Siemens SIMATIC2024-03-14icsa · cisa_csaf_otUS
Successful exploitation of these vulnerabilities could allow an attacker to execute arbitrary code within the context of a privileged process.
- ASB-A-1695059292021-10-01vendor · osvUS
In ib_prctl_set of bugs.c, there is a possible way to re-enable indirect branch speculation due to a permissions bypass. This could lead to local information disclosure via a Spectre v2 attack with no additional execution privileges needed. User interaction is not needed for exploitation.
auch bekannt als (5)
Weitere Namen und Kennungen dieser Entität.
quellen
Welche Quellen diesen Datensatz belegen und wann.
Referenzen (31)
Externe Belege — Patches, Meldungen, Analysen.
- https://access.redhat.com/security/cve/cve-2020-10768cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-10768cnnvd
- https://device.harmonyos.com/cn/docs/security/update/security-bulletins-wearables-202111-0000001172568432cnnvd
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4d8df8cbb9156b0a0ab3f802b80cb5db57acc0bfcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2020-10768cnnvd
- https://packetstormsecurity.com/files/158505/Red-Hat-Security-Advisory-2020-3073-01.htmlcnnvd
- https://packetstormsecurity.com/files/158509/Ubuntu-Security-Notice-USN-4427-1.htmlcnnvd
- https://packetstormsecurity.com/files/158629/Ubuntu-Security-Notice-USN-4440-1.htmlcnnvd
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