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GO-2022-0524 BIT-golang-2022-30631 CVE-2022-30631

Stack exhaustion when reading certain archives in compress/gzip

High Go
Severity
7.5 / 10
High · CVSS 3.1
Exploit chance (EPSS)
2.19%
Chance of exploitation in the next 30 days. Higher than 82.40% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-674 Uncontrolled Recursion
Fix
1.18.4
Upgrade stdlib to this version or later

Description

Calling Reader.Read on an archive containing a large number of concatenated 0-length compressed files can cause a panic due to stack exhaustion.

Affected versions

Go

PackageVulnerableFixed in
stdlib
< 1.17.12
>= 1.18.0-0, < 1.18.4
1.17.12
1.18.4

How to fix

Move to the fixed version or later with your package manager, update the lockfile, and run your tests. If the package only arrives through another dependency, upgrade that dependency first. If none of its releases pulls a fixed version yet, force the version with your package manager's override.

stdlib Go → 1.18.4

go
go get stdlib@v1.18.4 && go mod tidy

Severity breakdown

CVSS 3.1 7.5

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

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

Weakness

CWE-674: Uncontrolled Recursion

The product does not properly control the amount of recursion that takes place, consuming excessive resources, such as allocated memory or the program stack.

How to prevent it
  • Implementation: Ensure that an end condition will be reached under all logic conditions. The end condition may include checking against the depth of recursion and exiting with an error if the recursion goes too deep. The complexity of the end condition contributes to the effectiveness of this action.
  • Implementation: Increase the stack size.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
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GO-2026-6607
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High Also affects stdlib
GO-2026-6604
Root.Mkdir(All) can follow junctions out of the root on Windows in os
Critical Also affects stdlib
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