Vulnerability · Published Nov 7, 2024 · Assigned by redhat
CVE-2023-1973Undertow: unrestricted request storage leads to memory exhaustion
High 7.5
In plain English
A high-severity improper input validation in Red Hat JBoss Enterprise Application Platform 7 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.3% (higher than 70% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.3%top 29.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:13 | undertow | 2.3.18-1 | CVE-2023-1973 |
| Debian:14 | undertow | 2.3.18-1 | DEBIAN-CVE-2023-1973 |
| Maven | io.undertow:undertow-core | 2.3.13.Final | GHSA-97cq-f4jm-mv8h |
| Maven | io.undertow:undertow-core | 2.2.32.Final | GHSA-97cq-f4jm-mv8h |
| Ubuntu:25.10 | undertow | no fix listed | UBUNTU-CVE-2023-1973 |
| Ubuntu:26.04:LTS | undertow | no fix listed | UBUNTU-CVE-2023-1973 |
| Ubuntu:26.10 | undertow | no fix listed | UBUNTU-CVE-2023-1973 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat JBoss Enterprise Application Platform 7 | see references |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 8 | see references |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 for RHEL 9 | see references |
| Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 on RHEL 7 | see references |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8 | see references |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 8 | see references |
| Red Hat | Red Hat JBoss Enterprise Application Platform 8.0 for RHEL 9 | see references |
Weakness: CWE-20 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- RHSA-2024:1674 vendor-advisory, x_refsource_REDHAT
- RHSA-2024:1675 vendor-advisory, x_refsource_REDHAT
- RHSA-2024:1676 vendor-advisory, x_refsource_REDHAT
- RHSA-2024:1677 vendor-advisory, x_refsource_REDHAT
- RHSA-2024:2763 vendor-advisory, x_refsource_REDHAT
- RHSA-2024:2764 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2023-1973 vdb-entry, x_refsource_REDHAT
- RHBZ#2185662 issue-tracking, x_refsource_REDHAT