7.5

CVE-2023-43642: Missing upper bound check on chunk length in snappy-java

Modified
AliasesUBUNTU-CVE-2023-43642DEBIAN-CVE-2023-43642CGA-7mmj-69g3-r9h8
Published 25-09-2023Last modified 24-09-2024

Vulnerability summary

CVE-2023-43642 is a high (CVSS 7.5) vulnerability in xerial snappy-java. EPSS estimates a 1.21% chance of exploitation in the next 30 days, higher than 68.4% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (GitHub, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 0 · Related 3
CGA-82H8-5945-HF9HCGA-G8P3-JQ96-P2RQCGA-HP96-WJRQ-9F66

Timeline

  1. 25-09-2023
    PublishedVulnerability first disclosed.
  2. 24-09-2024
    Last modifiedVulnerability information updated.

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 metrics

7 scores · 7 sources · 1 version

EPSS trend

Probability

1.21%

Chance of exploitation in the next 30 days

Percentile

68%

Versus all other CVEs

30-day change

No change 0.00 pp

From 1.21% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

1 found
  • githubUnverified

    Snappy Java

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Chainguard2 products
  • druid< 37.0.0-r0
  • hadoop-fips-3.3.6All versions (No fix recorded)
Debian1 product
  • snappy-javaAll versions (No fix recorded) | < 1.1.10.5-1
Org.xerial.snappy1 product
  • snappy-java< 1.1.10.4
Ubuntu1 product
  • snappy-javaAll versions (No fix recorded)
Wolfi1 product
  • druid< 37.0.0-r0
Xerial1 product

6 vendors · 7 products

References

9 links