zstd-jni before 1.5.7-14 contains a use-after-free vulnerability where streams and contexts hold a dictionary's shared lock only during the load call, allowing the dictionary to be closed while still referenced. Attackers can close a dictionary after associating it with a stream or context, causing subsequent read or write operations to access freed native memory, resulting in silent data corruption or JVM crashes.
Attack Parameters
Attack Vector
Local
Requires local access
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products
luben:zstd-jni
References 9
https://github.com/luben/zstd-jni
disclosure@vulncheck.com
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben…
disclosure@vulncheck.com
https://github.com/luben/zstd-jni/blob/v1.5.7-13/src/main/java/com/github/luben…
disclosure@vulncheck.com
https://github.com/luben/zstd-jni/commit/0827ed02551bbd8d6f8e4bbff99d83bf50f919…
disclosure@vulncheck.com
https://github.com/luben/zstd-jni/commit/393d7311766abbc285b149302c0fe1f94b16d5…
disclosure@vulncheck.com
https://github.com/luben/zstd-jni/commit/a560131d7834598afd9cea6b7c107bc88e9159…
disclosure@vulncheck.com
https://github.com/luben/zstd-jni/releases/tag/v1.5.7-14
disclosure@vulncheck.com
https://github.com/luben/zstd-jni/security/advisories/GHSA-947w-pxjj-c7m9
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/zstd-jni-1.3.8-4-through-1.5.7-13-use-afte…
disclosure@vulncheck.com