Medium severity · published Jun 8, 2020
CVE-2020-13844
Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with…
5.5
CVSS
0.5%
EPSS
No
On KEV
Description
Arm Armv8-A core implementations utilizing speculative execution past unconditional changes in control flow may allow unauthorized disclosure of information to an attacker with local user access via a side-channel analysis, aka "straight-line speculation."
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CF
Cortex-a32 Firmware · Arm
All versions, or not specified · source: NVD
CF
Cortex-a34 Firmware · Arm
All versions, or not specified · source: NVD
CF
Cortex-a35 Firmware · Arm
All versions, or not specified · source: NVD
CF
Cortex-a53 Firmware · Arm
All versions, or not specified · source: NVD
CF
Cortex-a57 Firmware · Arm
All versions, or not specified · source: NVD
CF
Cortex-a72 Firmware · Arm
All versions, or not specified · source: NVD
CF
Cortex-a73 Firmware · Arm
All versions, or not specified · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-13844
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-13844
Mailing List
http://lists.llvm.org/pipermail/llvm-dev/2020-June/142109.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00039.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00040.html
Vendor Advisory
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability
Vendor Advisory
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/downloads/straight-line-speculation
Vendor Advisory
https://developer.arm.com/support/arm-security-updates/speculative-processor-vulnerability/frequently-asked-questions