Resource exhaustion in Xerial Snappy-Java

CVE-2023-43642

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.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

EPSS exploit prediction

EPSS: 0.012 (67.4th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 67th percentile — 67.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2023-43642: held from 0.010 to 0.012.

EPSS over last 30 days · oldest: 0.010 · newest: 0.012 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2023-43642?
CVE-2023-43642 is a high-severity vulnerability in Xerial Snappy-Java, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2023-09-25.
How severe is CVE-2023-43642?
High severity. CVSS v3 base score is 7.5 out of 10.