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GHSA-ch7q-gpff-h9hp CVE-2024-3653

Undertow Missing Release of Memory after Effective Lifetime vulnerability

Medium Maven
Severity
0.0 / 10
Medium · CVSS 4.0
Exploit chance (EPSS)
1.87%
Chance of exploitation in the next 30 days. Higher than 79.30% of scored vulnerabilities.
Known exploited
No
Not in CISA's catalog
Weakness
CWE-401 Missing Release of Memory after Effective Lifetime
Fix
2.3.15.Final
Upgrade io.undertow:undertow-core to this version or later

Description

A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request.

Affected versions

Maven

PackageVulnerableFixed in
io.undertow:undertow-core
>= 2.3.0.Alpha1, < 2.3.15.Final
2.3.15.Final
io.undertow:undertow-core
< 2.2.34.Final
2.2.34.Final

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.

io.undertow:undertow-core Maven → 2.3.15.Final

maven
<dependency><groupId>io.undertow</groupId><artifactId>undertow-core</artifactId><version>2.3.15.Final</version></dependency>
gradle
implementation("io.undertow:undertow-core:2.3.15.Final")

Severity breakdown

CVSS 4.0 0.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Attack vector
Network
Attack complexity
Low
Attack requirements
Present
Privileges required
None
User interaction
None
Confidentiality (vulnerable system)
None
Integrity (vulnerable system)
None
Availability (vulnerable system)
Low
Confidentiality (subsequent systems)
None
Integrity (subsequent systems)
None
Availability (subsequent systems)
None

CVSS 3.1 5.3

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

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

Weakness

CWE-401: Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

How to prevent it
  • Implementation: Choose a language or tool that provides automatic memory management, or makes manual memory management less error-prone. For example, glibc in Linux provides protection against free of invalid pointers. When using Xcode to target OS X or iOS, enable automatic reference counting (ARC) [REF-391]. To help correctly and consistently manage memory when programming in C++, consider using a smart pointer class such as std::auto_ptr (defined by ISO/IEC ISO/IEC 14882:2003), std::shared_ptr and std::unique_ptr (specified by an upcoming revision of the C++ standard, informally referred to as C++ 1x), or equivalent solutions such as Boost.
  • Architecture and Design: Use an abstraction library to abstract away risky APIs. Not a complete solution.
  • Architecture and Design, Build and Compilation: Consider using the Boehm-Demers-Weiser garbage collector (bdwgc), which can help avoid leaks.

References

Timeline

  1. Published
  2. Last updated by the source
  3. Latest EPSS score
AdvisorySeverityWhy it's related
GHSA-3x3v-w654-m28m
Undertow: Denial of Service via Multipart/Form-Data Parsing on HTTP GET Requests
Medium Also affects io.undertow:undertow-core
GHSA-33hj-rcmx-86mv
Undertow Servlets Vulnerable to Remote DoS via OutOfMemoryError when Passed Large Parameter Names
High Also affects io.undertow:undertow-core
GHSA-j382-5jj3-vw4j
Undertow HTTP server core doesn't properly validate the Host header in incoming HTTP requests
Critical Also affects io.undertow:undertow-core
GHSA-6h4f-pj3g-q8fq
Undertow OutOfMemory when parsing form data encoding with application/x-www-form-urlencoded
High Also affects io.undertow:undertow-core
GHSA-95h4-w6j8-2rp8
Undertow MadeYouReset HTTP/2 DDoS Vulnerability
High Also affects io.undertow:undertow-core
GHSA-3jrv-jgp8-45v3
Undertow incorrectly parses cookies
High Also affects io.undertow:undertow-core
GHSA-97cq-f4jm-mv8h
Undertow Denial of Service vulnerability
High Also affects io.undertow:undertow-core
GHSA-9623-mqmm-5rcf
Undertow vulnerable to Race Condition
High Also affects io.undertow:undertow-core
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