Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.11.2, selector/lexer/tokenize.go parseCurRune advances the input index across trailing whitespace and then reads the source at the exhausted index without an end-of-input check. A selector ending in whitespace, including input passed through lexer.NewTokenizer(...).Tokenize() or dasel.Query, can therefore cause an index-out-of-range panic and terminate the process.
This issue is fixed in version 3.11.2.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v3.1
Weakness Type (CWE)
References 3
https://github.com/TomWright/dasel/commit/eee03aec28d4a33d6138098d065b7b37b85e3…
security-advisories@github.com
https://github.com/TomWright/dasel/releases/tag/v3.11.2
security-advisories@github.com
https://github.com/TomWright/dasel/security/advisories/GHSA-65gg-g7rw-6cpc
security-advisories@github.com