CVE-2020-10941
published 2020-03-24CVE-2020-10941: Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
PriorityP427medium5.9CVSS 3.1
AVNACHPRNUINSUCHINAN
EPSS
1.63%
73.2th percentile
Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| arm | mbed_crypto | < 3.1.0 | 3.1.0 |
| arm | mbed_tls | < 2.16.5 | 2.16.5 |
| debian | debian_linux | — | — |
| debian | mbedtls | < mbedtls 2.16.5-1 (bookworm) | mbedtls 2.16.5-1 (bookworm) |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| mbed | mbedtls | >= 0 < 2.16.5-1 | 2.16.5-1 |
| mbed | mbedtls | >= 0 < 2.16.5-1 | 2.16.5-1 |
| mbed | mbedtls | >= 0 < 2.16.5-1 | 2.16.5-1 |
| mbed | mbedtls | >= 0 < 2.16.5-1 | 2.16.5-1 |
| msrc | azl3_qemu_8.2.0-16_on_azure_linux_3.0 | — | — |
| msrc | cbl2_qemu_6.2.0-24_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv3.15.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.04.3MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N
osv5.9MEDIUM
vendor_debian5.9MEDIUM
vendor_msrc5.9MEDIUM
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GHSA
GHSA-3qrr-m24q-j9qm: Arm Mbed TLS before 2
ghsa_unreviewed·2022-05-24
CVE-2020-10941 [MEDIUM] CWE-311 GHSA-3qrr-m24q-j9qm: Arm Mbed TLS before 2
Arm Mbed TLS before 2.6.15 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
OSV
CVE-2020-10941: Arm Mbed TLS before 2
osv·2020-03-24·CVSS 5.9
CVE-2020-10941 [MEDIUM] CVE-2020-10941: Arm Mbed TLS before 2
Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
Microsoft
Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
vendor_msrc·2020-03-10·CVSS 5.9
CVE-2020-10941 [MEDIUM] Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this.
Mariner: Mariner
mitre: mitre
Custom
Debian
CVE-2020-10941: mbedtls - Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an ...
vendor_debian·2020·CVSS 5.9
CVE-2020-10941 [MEDIUM] CVE-2020-10941: mbedtls - Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an ...
Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
Scope: local
bookworm: resolved (fixed in 2.16.5-1)
bullseye: resolved (fixed in 2.16.5-1)
forky: resolved (fixed in 2.16.5-1)
sid: resolved (fixed in 2.16.5-1)
trixie: resolved (fixed in 2.16.5-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX
bugzilla·2020-06-29·CVSS 5.9
CVE-2020-10941 [MEDIUM] CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX
CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX
Arm Mbed TLS before 2.6.15 allows attackers to obtain sensitive information (an RSA private key) by measuring cache usage during an import.
References:
https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-02
Discussion:
Created mbedtls tracking bugs for this issue:
Affects: epel-all [bug 1851869]
Affects: fedora-all [bug 1851868]
---
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.
Bugzilla
CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX [epel-all]
bugzilla·2020-06-29·CVSS 5.9
CVE-2020-10941 [MEDIUM] CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX [epel-all]
CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX [epel-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of epel-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versions o
Bugzilla
CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX [fedora-all]
bugzilla·2020-06-29·CVSS 5.9
CVE-2020-10941 [MEDIUM] CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX [fedora-all]
CVE-2020-10941 mbedtls: cache attack against RSA key import in SGX [fedora-all]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of fedora-all.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
NOTE: this issue affects multiple supported versio
https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5JPE2HFBDJF3UBT6Q4VWLKNKCVCMX25J/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WD6OSOLLAR2AVPJAMGUKWRXN6477IHHV/https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-02https://lists.debian.org/debian-lts-announce/2022/12/msg00036.htmlhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/5JPE2HFBDJF3UBT6Q4VWLKNKCVCMX25J/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WD6OSOLLAR2AVPJAMGUKWRXN6477IHHV/https://tls.mbed.org/tech-updates/security-advisories/mbedtls-security-advisory-2020-02
2020-03-24
Published