CVE-2024-21820
published 2024-11-13CVE-2024-21820: Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to…
PriorityP431high7.2CVSS 3.1
AVLACHPRHUINSCCHIHAN
EPSS
0.21%
11.2th percentile
Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | intel-microcode | < intel-microcode 3.20241112.1~deb12u1 (bookworm) | intel-microcode 3.20241112.1~deb12u1 (bookworm) |
CVSS provenance
nvdv3.17.2HIGHCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:N
nvdv4.08.5HIGHCVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
osv8.5HIGH
vendor_debian8.5HIGH
vendor_ubuntu7.2HIGH
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Ubuntu
Intel Microcode vulnerabilities
vendor_ubuntu·2024-12-11·CVSS 7.2
CVE-2024-24968 [HIGH] Intel Microcode vulnerabilities
Title: Intel Microcode vulnerabilities
Summary: Several security issues were fixed in Intel Microcode.
Avraham Shalev and Nagaraju N Kodalapura discovered that some Intel(R)
Xeon(R) processors did not properly restrict access to the memory
controller when using Intel(R) SGX. This may allow a local privileged
attacker to further escalate their privileges. (CVE-2024-21820,
CVE-2024-23918)
It was discovered that some 4th and 5th Generation Intel(R) Xeon(R)
Processors did not properly implement finite state machines (FSMs) in
hardware logic. THis may allow a local privileged attacker to cause a
denial of service (system crash). (CVE-2024-21853)
It was discovered that some Intel(R) Processors did not properly restrict
access to the Running Average Power Limit (RAPL) interface. This may allo
Debian
CVE-2024-21820: intel-microcode - Incorrect default permissions in some Intel(R) Xeon(R) processor memory controll...
vendor_debian·2024·CVSS 8.5
CVE-2024-21820 [HIGH] CVE-2024-21820: intel-microcode - Incorrect default permissions in some Intel(R) Xeon(R) processor memory controll...
Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access.
Scope: local
bookworm: resolved (fixed in 3.20241112.1~deb12u1)
bullseye: resolved (fixed in 3.20241112.1~deb11u1)
forky: resolved (fixed in 3.20241112.1)
sid: resolved (fixed in 3.20241112.1)
trixie: resolved (fixed in 3.20241112.1)
OSV
intel-microcode vulnerabilities
osv·2024-12-11·CVSS 8.5
CVE-2024-21820 [HIGH] intel-microcode vulnerabilities
intel-microcode vulnerabilities
Avraham Shalev and Nagaraju N Kodalapura discovered that some Intel(R)
Xeon(R) processors did not properly restrict access to the memory
controller when using Intel(R) SGX. This may allow a local privileged
attacker to further escalate their privileges. (CVE-2024-21820,
CVE-2024-23918)
It was discovered that some 4th and 5th Generation Intel(R) Xeon(R)
Processors did not properly implement finite state machines (FSMs) in
hardware logic. THis may allow a local privileged attacker to cause a
denial of service (system crash). (CVE-2024-21853)
It was discovered that some Intel(R) Processors did not properly restrict
access to the Running Average Power Limit (RAPL) interface. This may allow
a local privileged attacker to obtain sensitive information.
(CVE-2024
GHSA
GHSA-643q-8gx3-hf55: Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user
ghsa_unreviewed·2024-11-13
CVE-2024-21820 [HIGH] CWE-276 GHSA-643q-8gx3-hf55: Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user
Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access.
OSV
CVE-2024-21820: Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user
osv·2024-11-13·CVSS 8.5
CVE-2024-21820 [HIGH] CVE-2024-21820: Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user
Incorrect default permissions in some Intel(R) Xeon(R) processor memory controller configurations when using Intel(R) SGX may allow a privileged user to potentially enable escalation of privilege via local access.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-11-13
Published