CVE-2023-43642

Missing upper bound check on chunk length in snappy-java

CVSS 7.5 HIGHEPSS 1.0%CWE-770

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.5EPSS 1.0%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

25 Sep 2023Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

snappy-java is a Java port of the snappy, a fast C++ compresser/decompresser developed by Google. The SnappyInputStream was found to be vulnerable to Denial of Service (DoS) attacks when decompressing data with a too large chunk size. Due to missing upper bound check on chunk length, an unrecoverable fatal error can occur. All versions of snappy-java including the latest released version 1.1.10.3 are vulnerable to this issue. A fix has been introduced in commit `9f8c3cf74` which will be included in the 1.1.10.4 release. Users are advised to upgrade. Users unable to upgrade should only accept compressed data from trusted sources.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

xerial · snappy-java

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References

https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5 https://github.com/xerial/snappy-java/security/advisories/GHSA-55g7-9cwv-5qfv