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Denial of service by NULL pointer dereference

High
julianhille published GHSA-f64j-4x74-p42m Nov 1, 2022

Package

npm hummus (npm)

Affected versions

< 1.0.111

Patched versions

1.0.111
npm muhammara (npm)
< 2.6.1 || >= 3.0.0 < 3.1.1
2.6.1, 3.1.1

Description

Impact

The package muhammara before 2.6.1, from 3.0.0 and before 3.1.1; all versions of package hummus are vulnerable to Denial of Service (DoS) when supplied with a maliciously crafted PDF file to be parsed.

Patches

It has been patched in 3.1.1 and has been backported to 2.6.1
There is no patch for hummus

Workarounds

Do not process files from untrusted sources or update.
Replace hummus with muhammara

References

https://nvd.nist.gov/vuln/detail/CVE-2022-25892
galkahana/HummusJS#463
#214
1890fb5
90b278d
https://security.snyk.io/vuln/SNYK-JS-HUMMUS-3091138
https://security.snyk.io/vuln/SNYK-JS-MUHAMMARA-3060320

Severity

High

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

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

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2022-25892

Weaknesses

Unchecked Return Value to NULL Pointer Dereference

The product does not check for an error after calling a function that can return with a NULL pointer if the function fails, which leads to a resultant NULL pointer dereference. Learn more on MITRE.

Credits