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CVE-2023-1108 undertow

Affected softwareundertow
Severity7.5 High CVSS 3.1 2 scores
Fixed in2.3.5.Final, 2.2.24.Final
WeaknessCWE-835
Published14 Sep 2023
Updated17 Jun 2026

Description

A flaw was found in undertow. This issue makes achieving a denial of service possible due to an unexpected handshake status updated in SslConduit, where the loop never terminates.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 3 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 1.8% chance in 30 days

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: undertow-io/undertow #1457.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix https://bugzilla.redhat.com/show_bug.cgi?id=2174246 : a Red Hat bug: the triage, which links onward to the fix

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 2 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H secalert@redhat.com Secondary published
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update January 2024 ↗ CPU 2024-Q1 Oracle Communications / Signaling (Undertow) (23.3.1)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Communications Signaling (Undertow) 23.3.1 23.3.1

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
io.undertow:undertow-core 2.3.0 2.3.5.Final unbounded
io.undertow:undertow-core 0 2.2.24.Final unbounded

Products and versions

17 products, 24 version entries
SourceVendorProductSchemeAffected versions
osv io.undertow undertow-core generic < 2.2.24 · ≥ 2.3.0 and < 2.3.5
nvd netapp oncommand workflow automation generic any version
nvd redhat build of quarkus generic any version
nvd redhat decision manager generic 7.0
nvd redhat fuse generic 1.0.0
nvd redhat integration camel k generic any version
nvd redhat integration service registry generic any version
nvd redhat jboss enterprise application platform generic any version · 7.4
nvd redhat jboss enterprise application platform expansion pack generic any version
nvd redhat openshift application runtimes generic any version
nvd redhat openshift container platform generic 4.11 · 4.12
nvd redhat openshift container platform for linuxone generic 4.9 · 4.10
nvd redhat openshift container platform for power generic 4.9 · 4.10
nvd redhat openstack platform generic 13.0
nvd redhat process automation generic 7.0
nvd redhat single sign-on generic any version · 7.6
nvd redhat undertow generic < 2.2.24 · ≥ 2.3.0 and < 2.3.5

References

URLTags
https://bugzilla.redhat.com/show_bug.cgi?id=2174246 bugzilla
https://github.com/undertow-io/undertow/pull/1457 WEB
https://github.com/undertow-io/undertow/commit/ccc053b55f5de9872bc1a4999fd6aa85fc5e146d WEB
https://github.com/undertow-io/undertow/commit/1b763064a41a30583b5df9a118898513007a70be WEB
https://github.com/undertow-io/undertow/commit/1302c8cf4476936802504efe0d36c58dcd954f78 WEB
https://security.netapp.com/advisory/ntap-20231020-0002 WEB
https://github.com/undertow-io/undertow PACKAGE
https://github.com/advisories/GHSA-m4mm-pg93-fv78 ADVISORY
https://access.redhat.com/security/cve/CVE-2023-1108 WEB
https://access.redhat.com/errata/RHSA-2023:4612 WEB

Timeline

Published2023-09-14By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.