Low severity · published Jan 5, 2022
CVE-2021-22567
Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by…
3.5
CVSS
0.6%
EPSS
No
On KEV
Description
Bidirectional Unicode text can be interpreted and compiled differently than how it appears in editors which can be exploited to get nefarious code passed a code review by appearing benign. An attacker could embed a source that is invisible to a code reviewer that modifies the behavior of a program in unexpected ways.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
Required
Confidentiality
None
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DS
Dart Software Development Kit · Dart
before 2.15.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-22567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-22567
Release Notes
https://github.com/dart-lang/sdk/blob/main/CHANGELOG.md
Patch
https://github.com/dart-lang/sdk/commit/52519ea8eb4780c468c4c2ed00e7c8046ccfed41
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