CVE-2023-43642

Public Exploit
Missing upper bound check on chunk length in snappy-java

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.07%
Affected: xerial snappy-java
Published at:
Updated at:

References

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

Frequently Asked Questions

What is the severity of CVE-2023-43642?
CVE-2023-43642 has been scored as a high severity vulnerability.
How to fix CVE-2023-43642?
To fix CVE-2023-43642, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-43642 being actively exploited in the wild?
It is possible that CVE-2023-43642 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-43642?
CVE-2023-43642 affects xerial snappy-java.
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