Eclipse Jetty up to 9.4.52/10.0.15/11.0.15 MetaDataBuilder.java MetaDataBuilder.checkSize integer underflow

CVSS Meta Temp Score
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CTI Interest Score
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6.3$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Eclipse Jetty up to 9.4.52/10.0.15/11.0.15. Affected is the function MetaDataBuilder.checkSize of the file MetaDataBuilder.java. This manipulation causes integer underflow. This vulnerability is registered as CVE-2023-36478. Remote exploitation of the attack is possible. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Eclipse Jetty up to 9.4.52/10.0.15/11.0.15 and classified as problematic. Affected by this vulnerability is the function MetaDataBuilder.checkSize of the file MetaDataBuilder.java. The manipulation with an unknown input leads to a integer underflow vulnerability. The CWE definition for the vulnerability is CWE-191. The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result. As an impact it is known to affect availability. The summary by CVE is:

Eclipse Jetty provides a web server and servlet container. In versions 11.0.0 through 11.0.15, 10.0.0 through 10.0.15, and 9.0.0 through 9.4.52, an integer overflow in `MetaDataBuilder.checkSize` allows for HTTP/2 HPACK header values to exceed their size limit. `MetaDataBuilder.java` determines if a header name or value exceeds the size limit, and throws an exception if the limit is exceeded. However, when length is very large and huffman is true, the multiplication by 4 in line 295 will overflow, and length will become negative. `(_size+length)` will now be negative, and the check on line 296 will not be triggered. Furthermore, `MetaDataBuilder.checkSize` allows for user-entered HPACK header value sizes to be negative, potentially leading to a very large buffer allocation later on when the user-entered size is multiplied by 2. This means that if a user provides a negative length value (or, more precisely, a length value which, when multiplied by the 4/3 fudge factor, is negative), and this length value is a very large positive number when multiplied by 2, then the user can cause a very large buffer to be allocated on the server. Users of HTTP/2 can be impacted by a remote denial of service attack. The issue has been fixed in versions 11.0.16, 10.0.16, and 9.4.53. There are no known workarounds.

The weakness was published 10/10/2023 as GHSA-wgh7-54f2-x98r. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2023-36478 since 06/21/2023. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 241484 (TencentOS Server 4: jetty (TSSA-2025:0390)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 9.4.53, 10.0.16 or 11.0.16 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at Tenable (241484). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Integer underflow
CWE: CWE-191 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 241484
Nessus Name: TencentOS Server 4: jetty (TSSA-2025:0390)

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Jetty 9.4.53/10.0.16/11.0.16
Patch: github.com

Timelineinfo

06/21/2023 🔍
10/10/2023 +111 days 🔍
10/10/2023 +0 days 🔍
07/08/2025 +637 days 🔍

Sourcesinfo

Advisory: GHSA-wgh7-54f2-x98r
Status: Confirmed

CVE: CVE-2023-36478 (🔍)
GCVE (CVE): GCVE-0-2023-36478
GCVE (VulDB): GCVE-100-241735

Entryinfo

Created: 10/10/2023 19:26
Updated: 07/08/2025 06:27
Changes: 10/10/2023 19:26 (54), 07/08/2025 06:27 (17)
Complete: 🔍
Cache ID: 216::103

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