Debian LinuxOperating system · Debian

CVE-2022-38750

MEDIUM · 5.5 CVSS v3.1 Published 2022-09-05
Fix available
A fix is available. Upgrade to 1.31 or later.
See remediation →
58/100
Remediation priority · Elevated
Public exploit No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by stackoverflow.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis
How this class of weakness works · CWE-121

Data overflows a fixed-size buffer allocated on the stack, overwriting adjacent stack memory — including saved return addresses — which is the classic route to redirecting execution into attacker-supplied code. Crafted input is all it takes. Remediation is strict length checks, safe bounded string and memory functions, and modern stack-protection mitigations.

General guidance for the stack-based buffer overflow class — the official description and references above are authoritative for this specific CVE. Want a bespoke review and a reviewed fix? Ask our team →

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Debian LinuxOperating system
Affected:= 10.0
SnakeyamlApplication
Affected:< 1.31

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 1.31 or later
Fixed in 1.31
Recommended fix High confidence

SnakeYAML version 1.31 or later (org.yaml:snakeyaml:1.31)

  1. Identify the SnakeYAML library version currently in use by examining project dependencies (e.g., pom.xml, build.gradle, or package-lock.json)
  2. For Maven projects: Update the snakeyaml dependency version to 1.31 or later by editing pom.xml: <dependency><groupId>org.yaml</groupId><artifactId>snakeyaml</artifactId><version>1.31</version></dependency>
  3. For Gradle projects: Update the snakeyaml dependency to implementation 'org.yaml:snakeyaml:1.31' or later
  4. Rebuild and redeploy the application
  5. Verify the upgrade by running: java -cp <your-app.jar> org.yaml.snakeyaml.VersionInfo (should show 1.31 or later)
  6. Test the application functionality to ensure YAML parsing still works correctly
Caveat No known breaking changes; this is a patch release addressing security vulnerabilities. However, always test YAML parsing functionality after upgrading.

Generated from the published advisory — verify against the referenced sources before acting.

We can perform the upgrade in your staging environment and verify nothing breaks — typical engagement from $1,600. Get the upgrade done

Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2022-38750 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data