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.

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.

EPSS: 0.010 (60.5th percentile) — read the EPSS interpretation.

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.

Affected products

Xerial Snappy-java — versions < 1.1.10.4

Weakness classification (CWE)

CWE-770 — Allocation of Resources Without Limits or Throttling

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit)
security-advisories@github.com (Patch, x_refsource_MISC)

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.