Login Request a demo
High severity · published Jun 8, 2021
CVE-2021-22548
An attacker can change the pointer to untrusted memory to point to trusted memory region which causes copying trusted memory to trusted memory, if the latter is later copied out,…
7.8
CVSS
0.1%
EPSS
No
On KEV
Description
An attacker can change the pointer to untrusted memory to point to trusted memory region which causes copying trusted memory to trusted memory, if the latter is later copied out, it allows for reading of memory regions from the trusted region. It is recommended to update past 0.6.2 or git commit https://github.com/google/asylo/commit/53ed5d8fd8118ced1466e509606dd2f473707a5c
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AS
Asylo · Google
before 0.6.2 · source: NVD
Affected product
AS
Asylo
Google
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22548
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22548
Patch
https://github.com/google/asylo/commit/53ed5d8fd8118ced1466e509606dd2f473707a5c
More from Asylo
9.6
CVE-2020-8904
An arbitrary memory overwrite vulnerability in the trusted memory of Asylo exists in versions prior to 0.6.0
7.8
CVE-2021-22550
An attacker can modify the pointers in enclave memory to overwrite arbitrary memory addresses within the secure enclave
7.8
CVE-2021-22549
An attacker can modify the address to point to trusted memory to overwrite arbitrary trusted memory
7.8
CVE-2020-8935
An arbitrary memory overwrite vulnerability in Asylo versions up to 0.6.0 allow an attacker to make an Ecall_restore function call to reallocate untrusted code and overwrite…
6.5
CVE-2020-8905
A buffer length validation vulnerability in Asylo versions prior to 0.6.0 allows an attacker to read data they should not have access to