Xerial snappy-java before 1.1.10.9 contains an unbounded memory allocation vulnerability that allows attackers to exhaust JVM memory by declaring a large uncompressed length in compressed input. Attackers can supply a few crafted bytes to Snappy.uncompress, uncompressString, SnappyInputStream or SnappyFramedInputStream to force allocations up to 2 GB, causing OutOfMemoryError and denial of service.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
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
None
No data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 6
https://github.com/xerial/snappy-java
disclosure@vulncheck.com
https://github.com/xerial/snappy-java/blob/v1.1.10.8/src/main/java/org/xerial/s…
disclosure@vulncheck.com
https://github.com/xerial/snappy-java/commit/943c6043a292568575e8347af4507d015e…
disclosure@vulncheck.com
https://github.com/xerial/snappy-java/releases/tag/v1.1.10.9
disclosure@vulncheck.com
https://github.com/xerial/snappy-java/security/advisories/GHSA-q233-g92q-qxp6
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/xerial-snappy-java-before-1.1.10.9-unbound…
disclosure@vulncheck.com