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TI-2023-13846 Aliases CVE-2023-29469GHSA-7jv7-hr35-fwjr

An issue was discovered in libxml2 before 2.10.4.

Priority LOW 31CWE-415Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 7 fixed, 2 without a fix

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-415 and the CVSS impact.

Summary

An issue was discovered in libxml2 before 2.10.4. When hashing empty dict strings in a crafted XML document, xmlDictComputeFastKey in dict.c can produce non-deterministic values, leading to various logic and memory errors, such as a double free. This behavior occurs because there is an attempt to use the first byte of an empty string, and any value is possible (not solely the '\0' value).

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01309 70th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 7 fixed, 2 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*before 2.10.4Vulnerablexmlsoft
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* Versions before 2.10.4 Vulnerable ·xmlsoft
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

Red Hat 4 advisories

  • RHSA-2024:0413 Released 2024-01-25 · Red Hat rating Moderate
    libxml2 security update
    • Red Hat Enterprise Linux AppStream EUS (v.8.6) libxml2-devel-2.9.7-13.el8_6.4
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) libxml2-2.9.7-13.el8_6.4, python3-libxml2-2.9.7-13.el8_6.4
  • RHSA-2023:4628 Released 2023-08-15 · Red Hat rating Moderate
    Red Hat JBoss Core Services Apache HTTP Server 2.4.57 security update
    • Red Hat JBoss Core Services 2.4.57
  • RHSA-2023:4529 Released 2023-08-08 · Red Hat rating Moderate
    libxml2 security update
    • Red Hat Enterprise Linux AppStream (v. 8) libxml2-devel-2.9.7-16.el8_8.1
    • Red Hat Enterprise Linux BaseOS (v. 8) libxml2-2.9.7-16.el8_8.1, python3-libxml2-2.9.7-16.el8_8.1
Show 1 more Red Hat advisories
  • RHSA-2023:4349 Released 2023-08-01 · Red Hat rating Moderate
    libxml2 security update
    • Red Hat Enterprise Linux AppStream (v. 9) libxml2-devel-2.9.13-3.el9_2.1
    • Red Hat Enterprise Linux BaseOS (v. 9) libxml2-2.9.13-3.el9_2.1, python3-libxml2-2.9.13-3.el9_2.1

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2023:4529
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2023:4349
Red Hat Enterprise Linux AppStream EUS (v.8.6)Fixed RHSA-2024:0413
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2023:4529
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2023:4349
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2024:0413
Red Hat JBoss Core Services 2.4.57Fixed RHSA-2023:4628
Not affected: 3 products
  • CloudForms Management Engine 5
  • Red Hat 3scale API Management Platform 2
  • Red Hat Satellite 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-29469
  2. 2026-10-03 Alias added: GHSA-7jv7-hr35-fwjr
  3. 2026-10-09 Fix available: RHSA-2023:4628 · Red Hat
  4. 2026-10-16 Fix available: Red Hat JBoss Core Services 2.4.57 · Red Hat

References

Advisory 2

Other 2

Sources

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