CVE-2023-43642
The SnappyInputStream was found to be vulnerable to Denial of Service (DoS) attacks when decompressing data with a too large chunk size.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.04%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.04% probability · 62th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-770
- Affected
- xerial/snappy-java
- Source
- security-advisories@github.com
References
- https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5Patch
- https://github.com/xerial/snappy-java/security/advisories/GHSA-55g7-9cwv-5qfvExploit
- https://github.com/xerial/snappy-java/commit/9f8c3cf74223ed0a8a834134be9c917b9f10ceb5Patch
- https://github.com/xerial/snappy-java/security/advisories/GHSA-55g7-9cwv-5qfvExploit
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.