CVE-2024-36403 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2024-36403 Interim 1 11 2026-03-05T02:29:51Z current 2025-01-29T00:47:42Z 2026-03-05T02:29:51Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2024-36403 Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 is vulnerable to unbounded disk consumption, where an unauthenticated adversary can induce it to download and cache large amounts of remote media files. MMR's typical operating environment uses S3-like storage as a backend, with file-backed store as an alternative option. Instances using a file-backed store or those which self-host an S3 storage system are therefore vulnerable to a disk fill attack. Once the disk is full, authenticated users will be unable to upload new media, resulting in denial of service. For instances configured to use a cloud-based S3 storage option, this could result in high service fees instead of a denial of service. MMR 1.3.5 introduces a new default-on "leaky bucket" rate limit to reduce the amount of data a user can request at a time. This does not fully address the issue, but does limit an unauthenticated user's ability to request large amounts of data. Operators should note that the leaky bucket implementation introduced in MMR 1.3.5 requires the IP address associated with the request to be forwarded, to avoid mistakenly applying the rate limit to the reverse proxy instead. To avoid this issue, the reverse proxy should populate the X-Forwarded-For header when sending the request to MMR. Operators who cannot update may wish to lower the maximum file size they allow and implement harsh rate limits, though this can still lead to a large amount of data to be downloaded. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/sle-security-updates/2025-January/020248.html E-Mail link for SUSE-SU-2025:0297-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings Container suse/sl-micro/6.0/baremetal-os-container:latest Container suse/sl-micro/6.0/base-os-container:latest Container suse/sl-micro/6.0/kvm-os-container:latest Container suse/sl-micro/6.0/rt-os-container:latest Container suse/sl-micro/6.0/toolbox:latest Image SL-Micro Image SL-Micro-Base Image SL-Micro-Base-RT Image SL-Micro-Base-RT-SelfInstall Image SL-Micro-Base-RT-encrypted Image SL-Micro-Base-SelfInstall Image SL-Micro-Base-encrypted Image SL-Micro-Base-qcow Image SL-Micro-Default Image SL-Micro-Default-SelfInstall Image SL-Micro-Default-encrypted Image SL-Micro-Default-qcow Image SLE-Micro Image SLE-Micro-Azure Image SLE-Micro-BYOS Image SLE-Micro-BYOS-Azure Image SLE-Micro-BYOS-EC2 Image SLE-Micro-BYOS-GCE Image SLE-Micro-EC2 Image SLE-Micro-GCE SUSE Linux Enterprise Server 16.0 openSUSE Tumbleweed govulncheck-vulndb-0.0.20250117T214834-1.1 govulncheck-vulndb-0.0.20250814T182633-160000.1.2 libxml2-2-2.11.6-slfo.1.1_6.1 libxml2-tools-2.11.6-slfo.1.1_6.1 libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Container suse/sl-micro/6.0/baremetal-os-container:latest libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Container suse/sl-micro/6.0/base-os-container:latest libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Container suse/sl-micro/6.0/kvm-os-container:latest libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Container suse/sl-micro/6.0/rt-os-container:latest libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Container suse/sl-micro/6.0/toolbox:latest libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-RT libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-RT libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-RT-SelfInstall libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-RT-SelfInstall libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-RT-encrypted libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-RT-encrypted libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-SelfInstall libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-SelfInstall libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-encrypted libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-encrypted libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-qcow libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Base-qcow libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default-SelfInstall libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default-SelfInstall libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default-encrypted libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default-encrypted libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default-qcow libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SL-Micro-Default-qcow libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-Azure libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-Azure libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS-Azure libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS-Azure libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS-EC2 libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS-EC2 libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS-GCE libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-BYOS-GCE libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-EC2 libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-EC2 libxml2-2-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-GCE libxml2-tools-2.11.6-slfo.1.1_6.1 as a component of Image SLE-Micro-GCE govulncheck-vulndb-0.0.20250814T182633-160000.1.2 as a component of SUSE Linux Enterprise Server 16.0 govulncheck-vulndb-0.0.20250117T214834-1.1 as a component of openSUSE Tumbleweed Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. MMR before version 1.3.5 is vulnerable to unbounded disk consumption, where an unauthenticated adversary can induce it to download and cache large amounts of remote media files. MMR's typical operating environment uses S3-like storage as a backend, with file-backed store as an alternative option. Instances using a file-backed store or those which self-host an S3 storage system are therefore vulnerable to a disk fill attack. Once the disk is full, authenticated users will be unable to upload new media, resulting in denial of service. For instances configured to use a cloud-based S3 storage option, this could result in high service fees instead of a denial of service. MMR 1.3.5 introduces a new default-on "leaky bucket" rate limit to reduce the amount of data a user can request at a time. This does not fully address the issue, but does limit an unauthenticated user's ability to request large amounts of data. Operators should note that the leaky bucket implementation introduced in MMR 1.3.5 requires the IP address associated with the request to be forwarded, to avoid mistakenly applying the rate limit to the reverse proxy instead. To avoid this issue, the reverse proxy should populate the X-Forwarded-For header when sending the request to MMR. Operators who cannot update may wish to lower the maximum file size they allow and implement harsh rate limits, though this can still lead to a large amount of data to be downloaded. CVE-2024-36403 Container suse/sl-micro/6.0/baremetal-os-container:latest:libxml2-2-2.11.6-slfo.1.1_6.1 Container suse/sl-micro/6.0/base-os-container:latest:libxml2-2-2.11.6-slfo.1.1_6.1 Container suse/sl-micro/6.0/kvm-os-container:latest:libxml2-2-2.11.6-slfo.1.1_6.1 Container suse/sl-micro/6.0/rt-os-container:latest:libxml2-2-2.11.6-slfo.1.1_6.1 Container suse/sl-micro/6.0/toolbox:latest:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-RT:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-RT:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-RT-SelfInstall:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-RT-SelfInstall:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-RT-encrypted:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-RT-encrypted:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-SelfInstall:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-SelfInstall:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-VMware:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-VMware:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-encrypted:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-encrypted:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-qcow:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Base-qcow:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-SelfInstall:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-SelfInstall:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-VMware:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-VMware:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-encrypted:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-encrypted:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-qcow:libxml2-2-2.11.6-slfo.1.1_6.1 Image SL-Micro-Default-qcow:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro-Azure:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro-Azure:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS-Azure:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS-Azure:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS-EC2:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS-EC2:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS-GCE:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro-BYOS-GCE:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro-EC2:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro-EC2:libxml2-tools-2.11.6-slfo.1.1_6.1 Image SLE-Micro-GCE:libxml2-2-2.11.6-slfo.1.1_6.1 Image SLE-Micro-GCE:libxml2-tools-2.11.6-slfo.1.1_6.1 SUSE Linux Enterprise Server 16.0:govulncheck-vulndb-0.0.20250814T182633-160000.1.2 openSUSE Tumbleweed:govulncheck-vulndb-0.0.20250117T214834-1.1 important 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N