vulnerability
Atlassian JIRA: CVE-2023-44487: DoS (Denial of Service) io.netty:netty-codec-http2 in Jira Software Data Center and Server
Severity | CVSS | Published | Added | Modified |
---|---|---|---|---|
8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Nov 21, 2023 | May 15, 2025 | May 15, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Nov 21, 2023
Added
May 15, 2025
Modified
May 15, 2025
Description
This High severity Third-Party Dependency vulnerability was introduced in versions 9.8.0, 9.9.0, 9.10.0, and 9.11.0 of Jira Software Data Center and Server.
This Third-Party Dependency vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation which has no impact to confidentiality, no impact to integrity, high impact to availability, and requires no user interaction.
Atlassian recommends that Jira Software Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
* Jira Software Data Center and Server 9.11: Upgrade to a release greater than or equal to 9.11.3
See the release notes. You can download the latest version of Jira Software Data Center and Server from the download center.
The National Vulnerability Database provides the following description for this vulnerability: The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
This Third-Party Dependency vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation which has no impact to confidentiality, no impact to integrity, high impact to availability, and requires no user interaction.
Atlassian recommends that Jira Software Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
* Jira Software Data Center and Server 9.11: Upgrade to a release greater than or equal to 9.11.3
See the release notes. You can download the latest version of Jira Software Data Center and Server from the download center.
The National Vulnerability Database provides the following description for this vulnerability: The HTTP/2 protocol allows a denial of service (server resource consumption) because request cancellation can reset many streams quickly, as exploited in the wild in August through October 2023.
Solution
atlassian-jira-upgrade-latest

NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.