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OpenAdvisories
High · 7.5 CVE-2023-52425 EUVD-2023-57052GHSA-gh68-jm46-84rf

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large t…

Published Feb 4, 2024 · Updated Oct 15, 2026 · Assigned by mitre

Description

libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 expat 2.6.0-1 —
Debian 13 expat 2.6.0-1 —
Debian 12 expat 2.5.0-1+deb12u2 —
Debian 12 libxmltok No fix yet —
Debian 11 expat 2.2.10-2+deb11u6 DLA-3893-1
Debian 10 expat 2.2.6-2+deb10u7 DLA-3783-1
ReleasePackageFixed inAdvisory
Ubuntu 26.10 tdom +5 No fix yet —
Ubuntu 26.04 LTS tdom +4 No fix yet —
Ubuntu 25.10 tdom +5 No fix yet —
Ubuntu 24.04 LTS expat 2.6.0-1 —
Ubuntu 24.04 LTS tdom +4 No fix yet —
Ubuntu 22.04 LTS expat 2.4.7-1ubuntu0.3 USN-6694-1
Ubuntu 22.04 LTS tdom +5 No fix yet —
Show 10 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS tdom +4 No fix yet —
Ubuntu 18.04 LTS tdom +5 No fix yet —
Ubuntu 16.04 LTS tdom +4 No fix yet —
Ubuntu Pro 26.04 LTS swish-e No fix yet —
Ubuntu Pro 24.04 LTS swish-e +1 No fix yet —
Ubuntu Pro 22.04 LTS swish-e +1 No fix yet —
Ubuntu Pro 20.04 LTS expat +3 No fix yet —
Ubuntu Pro 18.04 LTS coin3 +4 No fix yet —
Ubuntu Pro 16.04 LTS vtk +8 No fix yet —
Ubuntu Pro 14.04 LTS vtk +4 No fix yet —
ReleasePackageFixed inAdvisory
RHEL 9 expat +1 2.5.0-1.el9_3.1 RHSA-2024:1530
RHEL 8 expat +1 2.2.5-11.el8_9.1 RHSA-2024:1615
RHEL 8 xmlrpc-c +4 1.51.0-9.el8_10 RHSA-2024:4259
Show 7 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
RHEL 9.2 EUS expat +1 2.5.0-1.el9_2.1 RHSA-2024:3926
RHEL 9.0 E4S expat 2.2.10-12.el9_0.4 RHSA-2025:22035
RHEL 8.8 EUS expat +1 2.2.5-11.el8_8.2 RHSA-2024:2575
RHEL 8.6 EUS expat +1 2.2.5-8.el8_6.5 RHSA-2024:2839
RHEL 8.4 EUS Long Life expat 2.2.10-1.el8_4 RHSA-2025:22785
RHEL 8.4 AUS expat 2.2.10-1.el8_4 RHSA-2025:22785
RHEL 8.2 AUS expat 2.2.10-1.el8_2 RHSA-2025:22871

AlmaLinux

Errata ↗
ReleasePackageFixed inAdvisory
AlmaLinux 9 expat +1 2.5.0-1.el9_3.1 ALSA-2024:1530
AlmaLinux 8 expat +1 2.2.5-11.el8_9.1 ALSA-2024:1615
AlmaLinux 8 xmlrpc-c +4 1.51.0-9.el8_10 ALSA-2024:4259

Rocky Linux

Errata ↗
ReleasePackageFixed inAdvisory
Rocky Linux 8 expat 2.2.5-11.el8_9.1 RLSA-2024:1615
Rocky Linux 8 xmlrpc-c 1.51.0-9.el8_10 RLSA-2024:4259
ReleasePackageFixed inAdvisory
SLES 15 SP6 expat 2.8.5-150400.3.40.1 SUSE-SU-2026:4623-1
SLES 15 SP6 python +1 2.7.18-150000.65.1 SUSE-SU-2024:1862-1
SLES 15 SP6 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLES 15 SP6 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLES 15 SP5 expat 2.4.4-150400.3.17.1 SUSE-SU-2026:4623-1, SUSE-SU-2024:1129-1
SLES 15 SP5 python +1 2.7.18-150000.65.1 SUSE-SU-2024:1862-1
SLES 15 SP5 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLES 15 SP5 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLES 15 SP4 expat 2.4.4-150400.3.17.1 SUSE-SU-2026:4623-1, SUSE-SU-2024:1129-1
SLES 15 SP4 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLES 15 SP4 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLES 15 SP4 python310 +1 3.10.14-150400.4.45.1 SUSE-SU-2024:1162-1
SLES 15 SP4 python311 +2 3.11.9-150400.9.26.1 SUSE-SU-2024:1556-1
SLES 15 SP3 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLES 15 SP3 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLES 15 SP3 python39 3.9.19-150300.4.41.1 SUSE-SU-2024:1009-1
SLES 15 SP3 python39-core 3.9.19-150300.4.41.2 SUSE-SU-2024:1009-1
SLES 15 SP2 python3 +1 3.6.15-150000.3.147.1 SUSE-SU-2024:1774-1
Show 23 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES 12 SP5 expat 2.1.0-21.32.1 SUSE-SU-2026:4615-1, SUSE-SU-2024:3004-1
SLES 12 SP5 python +2 2.7.18-33.32.1 SUSE-SU-2024:1667-1
SLES 12 SP5 python3 +1 3.4.10-25.127.1 SUSE-SU-2024:1657-1
SLES 12 SP5 python36 +1 3.6.15-55.1 SUSE-SU-2024:1847-1
SLES 12 python3 +1 3.4.10-25.127.1 SUSE-SU-2024:1657-1
SLES 3 python311 +2 3.11.9-150400.9.26.1 SUSE-SU-2024:1556-1
SLES for SAP 15 SP6 expat 2.8.5-150400.3.40.1 SUSE-SU-2026:4623-1
SLES for SAP 15 SP5 expat 2.8.5-150400.3.40.1 SUSE-SU-2026:4623-1
SLES for SAP 15 SP4 expat 2.4.4-150400.3.17.1 SUSE-SU-2026:4623-1, SUSE-SU-2024:1129-1
SLES for SAP 15 SP4 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLES for SAP 15 SP4 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLES for SAP 15 SP4 python310 +1 3.10.14-150400.4.45.1 SUSE-SU-2024:1162-1
SLES for SAP 15 SP4 python311 +2 3.11.9-150400.9.26.1 SUSE-SU-2024:1556-1
SLES for SAP 15 SP3 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLES for SAP 15 SP3 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLES for SAP 15 SP3 python39 3.9.19-150300.4.41.1 SUSE-SU-2024:1009-1
SLES for SAP 15 SP3 python39-core 3.9.19-150300.4.41.2 SUSE-SU-2024:1009-1
SLES for SAP 15 SP2 python3 +1 3.6.15-150000.3.147.1 SUSE-SU-2024:1774-1
SLES for SAP 12 SP5 expat 2.1.0-21.32.1 SUSE-SU-2024:3004-1
SLES for SAP 12 SP5 python +2 2.7.18-33.32.1 SUSE-SU-2024:1667-1
SLES for SAP 12 SP5 python3 +1 3.4.10-25.127.1 SUSE-SU-2024:1657-1
SLES for SAP 12 SP5 python36 +1 3.6.15-55.1 SUSE-SU-2024:1847-1
SLE Micro 6.1 expat 2.7.1-slfo.1.1_1.1 SUSE-SU-2025:20311-1
SLE Micro 6.1 python311 +1 3.11.12-slfo.1.1_1.1 SUSE-SU-2025:20374-1
SLE Micro 6.0 expat 2.7.1-1.1 SUSE-SU-2026:24323-1, SUSE-SU-2025:20207-1
SLE Micro 6.0 python311 +1 3.11.8-3.1 SUSE-SU-2025:20154-1, SUSE-SU-2025:20025-1
SLE Micro 5.5 expat 2.4.4-150400.3.17.1 SUSE-SU-2026:4623-1, SUSE-SU-2024:1129-2, SUSE-SU-2024:1129-1
SLE Micro 5.5 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLE Micro 5.5 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLE Micro 5.4 expat 2.4.4-150400.3.17.1 SUSE-SU-2026:4623-1, SUSE-SU-2024:1129-1
SLE Micro 5.4 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLE Micro 5.4 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLE Micro 5.3 expat 2.4.4-150400.3.17.1 SUSE-SU-2026:4623-1, SUSE-SU-2024:1129-1
SLE Micro 5.3 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLE Micro 5.3 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLE Micro 5.2 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLE Micro 5.2 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLE Micro 5.1 python3 +1 3.6.15-150000.3.147.1 SUSE-SU-2024:1774-1
SLE HPC 15 SP5 expat 2.8.5-150400.3.40.1 SUSE-SU-2026:4623-1
SLE HPC 15 SP4 expat 2.4.4-150400.3.17.1 SUSE-SU-2026:4623-1, SUSE-SU-2024:1129-1
SLE HPC 15 SP4 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLE HPC 15 SP4 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLE HPC 15 SP4 python310 +1 3.10.14-150400.4.45.1 SUSE-SU-2024:1162-1
SLE HPC 15 SP4 python311 +2 3.11.9-150400.9.26.1 SUSE-SU-2024:1556-1
SLE HPC 15 SP3 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SLE HPC 15 SP3 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SLE HPC 15 SP3 python39 3.9.19-150300.4.41.1 SUSE-SU-2024:1009-1
SLE HPC 15 SP3 python39-core 3.9.19-150300.4.41.2 SUSE-SU-2024:1009-1
SLE HPC 15 SP2 python3 +1 3.6.15-150000.3.147.1 SUSE-SU-2024:1774-1
SUSE Manager Server 4.3 expat 2.4.4-150400.3.17.1 SUSE-SU-2024:1129-1
SUSE Manager Server 4.3 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SUSE Manager Server 4.3 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SUSE Manager Proxy 4.3 expat 2.4.4-150400.3.17.1 SUSE-SU-2024:1129-1
SUSE Manager Proxy 4.3 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SUSE Manager Proxy 4.3 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SUSE Enterprise Storage 7.1 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
SUSE Enterprise Storage 7.1 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
SUSE Enterprise Storage 7.1 python39 3.9.19-150300.4.41.1 SUSE-SU-2024:1009-1
SUSE Enterprise Storage 7.1 python39-core 3.9.19-150300.4.41.2 SUSE-SU-2024:1009-1
ReleasePackageFixed inAdvisory
openSUSE Tumbleweed clustershell 1.9.3-1.1 openSUSE-SU-2025:15212-1
openSUSE Tumbleweed expat 2.6.0-1.1 openSUSE-SU-2024:13695-1
openSUSE Tumbleweed python 2.7.18-46.1 openSUSE-SU-2024:13955-1
openSUSE Tumbleweed python310 3.10.14-1.1 openSUSE-SU-2024:13799-1
openSUSE Tumbleweed python311 3.11.9-1.1 openSUSE-SU-2024:13883-1
openSUSE Tumbleweed python312 3.12.3-1.1 openSUSE-SU-2024:13892-1
openSUSE Tumbleweed python313 3.13.0~b3-1.1 openSUSE-SU-2024:14109-1
openSUSE Tumbleweed python314 3.14.0~a1-1.1 openSUSE-SU-2024:14434-1
openSUSE Tumbleweed python315 3.15.0~a1-1.1 openSUSE-SU-2025:15713-1
openSUSE Tumbleweed python316 3.16.0~a1-1.1 openSUSE-SU-2026:12477-1
openSUSE Tumbleweed python38 3.8.19-1.1 openSUSE-SU-2024:13790-1
openSUSE Tumbleweed python39 3.9.19-1.1 openSUSE-SU-2024:13800-1
openSUSE Leap 15.6 python +2 2.7.18-150000.65.1 SUSE-SU-2024:1862-1
openSUSE Leap 15.6 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
openSUSE Leap 15.6 python3-core +1 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
openSUSE Leap 15.6 python310 +2 3.10.14-150400.4.48.1 SUSE-SU-2024:1698-1
openSUSE Leap 15.5 expat 2.4.4-150400.3.17.1 SUSE-SU-2024:1129-1
openSUSE Leap 15.5 python +2 2.7.18-150000.65.1 SUSE-SU-2024:1862-1
openSUSE Leap 15.5 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
openSUSE Leap 15.5 python3-core +1 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
openSUSE Leap 15.5 python310 +2 3.10.14-150400.4.45.1 SUSE-SU-2024:1698-1, SUSE-SU-2024:1162-1
openSUSE Leap 15.5 python311 +2 3.11.9-150400.9.26.1 SUSE-SU-2024:1556-1
openSUSE Leap 15.5 python39 +1 3.9.19-150300.4.41.1 SUSE-SU-2024:1009-1
openSUSE Leap 15.5 python39-core 3.9.19-150300.4.41.2 SUSE-SU-2024:1009-1
Show 2 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
openSUSE Leap Micro 5.4 expat 2.4.4-150400.3.17.1 SUSE-SU-2024:1129-1
openSUSE Leap Micro 5.4 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
openSUSE Leap Micro 5.4 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
openSUSE Leap Micro 5.3 expat 2.4.4-150400.3.17.1 SUSE-SU-2024:1129-1
openSUSE Leap Micro 5.3 python3 3.6.15-150300.10.65.2 SUSE-SU-2024:2479-1
openSUSE Leap Micro 5.3 python3-core 3.6.15-150300.10.65.1 SUSE-SU-2024:2479-1
ReleasePackageFixed inAdvisory
Alpine v3.24 expat 2.6.0-r0 —
Alpine v3.23 expat 2.6.0-r0 —
Alpine v3.22 expat 2.6.0-r0 —
Alpine v3.21 expat 2.6.0-r0 —
Alpine v3.20 expat 2.6.0-r0 —
Show 4 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Alpine v3.19 expat 2.6.0-r0 —
Alpine v3.18 expat 2.6.0-r0 —
Alpine v3.17 expat 2.6.0-r0 —
Alpine v3.16 expat 2.6.0-r0 —

Amazon Linux

ReleasePackageFixed inAdvisory
Amazon Linux 2023 expat +2 2.6.3-1.amzn2023.0.1 ALAS2023-2024-759
Amazon Linux 2023 xmlrpc-c +5 1.51.08-2.amzn2023.0.2 ALAS2023-2025-1229

Azure Linux

ReleasePackageFixed inAdvisory
Azure Linux 3 expat 2.6.2-1 —
Azure Linux 2 (CBL-Mariner) expat 2.6.2-2 —

Oracle Linux

ReleasePackageFixed inAdvisory
Oracle Linux 9 expat +1 2.5.0-1.el9_3.1 ELSA-2024-1530
Oracle Linux 8 expat +1 2.2.5-11.0.1.el8_9.1 ELSA-2024-1615
Oracle Linux 8 xmlrpc-c +4 1.51.0-9.el8_10 ELSA-2024-4259

Advisories 50

References