Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. If SVG or JPEGXL thumbnailers are enabled (they are disabled by default), a user may upload a file which claims to be either of these types and request a thumbnail to invoke a different decoder in ImageMagick. In some ImageMagick installations, this includes the capability to run Ghostscript to decode the image/file. If MP4 thumbnailers are enabled (also disabled by default), the same issue as above may occur with the ffmpeg installation instead. MMR uses a number of other decoders for all other file types when preparing thumbnails. Theoretical issues are possible with these decoders, however in testing they were not possible to exploit. This is fixed in MMR v1.3.8. MMR now inspects the mimetype of media prior to thumbnailing, and picks a thumbnailer based on those results instead of relying on user-supplied values. This may lead to fewer thumbnails when obscure file shapes are used. This also helps narrow scope of theoretical issues with all decoders MMR uses for thumbnails. Users are advised to upgrade. Users unable to upgrade may disable the SVG, JPEGXL, and MP4 thumbnail types in the MMR config which prevents the decoders from being invoked. Further disabling uncommon file types on the server is recommended to limit risk surface. Containers and other similar technologies may also be used to limit the impact of vulnerabilities in external decoders, like ImageMagick and ffmpeg. Some installations of ImageMagick may disable "unsafe" file types, like PDFs, already. This option can be replicated to other environments as needed. ffmpeg may be compiled with limited decoders/codecs. The Docker image for MMR disables PDFs and similar formats by default.

The remote SUSE Linux SLES15 / openSUSE 15 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0297-1 advisory.

    - Update to version 0.0.20250128T150132 2025-01-28T15:01:32Z.
      Refs jsc#PED-11136       Go CVE Numbering Authority IDs added or updated with aliases:
      * GO-2025-3409 CVE-2025-23208 GHSA-c9p4-xwr9-rfhx
      * GO-2025-3410 CVE-2025-24337 GHSA-3qc3-mx6x-267h
      * GO-2025-3413 CVE-2025-0377 GHSA-wpfp-cm49-9m9q
      * GO-2025-3414 CVE-2024-11218 GHSA-5vpc-35f4-r8w6
      * GO-2025-3415 CVE-2025-23028 GHSA-9m5p-c77c-f9j7
      * GO-2025-3416 CVE-2025-23047 GHSA-h78m-j95m-5356
      * GO-2025-3418 CVE-2025-24030 GHSA-j777-63hf-hx76
      * GO-2025-3419 CVE-2025-24355 GHSA-v34r-vj4r-38j6
      * GO-2025-3422 CVE-2025-24354

    - Update to version 0.0.20250128T004730 2025-01-28T00:47:30Z.
      Refs jsc#PED-11136       Go CVE Numbering Authority IDs added or updated with aliases:
      * GO-2025-3372 CVE-2024-45339
      * GO-2025-3373 CVE-2024-45341
      * GO-2025-3383 CVE-2024-45340
      * GO-2025-3420 CVE-2024-45336
      * GO-2025-3421 CVE-2025-22865

    - Update to version 0.0.20250117T214834 2025-01-17T21:48:34Z.
      Refs jsc#PED-11136       Go CVE Numbering Authority IDs added or updated with aliases:
      * GO-2025-3392 CVE-2025-20086 GHSA-5m7j-6gc4-ff5g
      * GO-2025-3393 CVE-2025-21088 GHSA-8j3q-gc9x-7972
      * GO-2025-3394 CVE-2025-20088 GHSA-45v9-w9fh-33j6
      * GO-2025-3396 CVE-2024-52594
      * GO-2025-3397 CVE-2024-36402 GHSA-8vmr-h7h5-cqhg
      * GO-2025-3398 CVE-2024-52791 GHSA-gp86-q8hg-fpxj
      * GO-2025-3399 CVE-2024-52602 GHSA-r6jg-jfv6-2fjv
      * GO-2025-3400 CVE-2024-56515 GHSA-rcxc-wjgw-579r
      * GO-2025-3401 CVE-2024-36403 GHSA-vc2m-hw89-qjxf
      * GO-2025-3407 CVE-2025-20621 GHSA-w6xh-c82w-h997

    - Update to version 0.0.20250115T172141 2025-01-15T17:21:41Z.
      Refs jsc#PED-11136       Go CVE Numbering Authority IDs added or updated with aliases:
      * GO-2025-3381 CVE-2024-56138 GHSA-45v3-38pc-874v
      * GO-2025-3382 CVE-2024-51491 GHSA-qjh3-4j3h-vmwp
      * GO-2025-3384 CVE-2024-56323 GHSA-32q6-rr98-cjqv
      * GO-2025-3390 CVE-2024-53263 GHSA-q6r2-x2cc-vrp7
      * GO-2025-3391 CVE-2024-52281 GHSA-2v2w-8v8c-wcm9

    - Update to version 0.0.20250109T194159 2025-01-09T19:41:59Z.
      Refs jsc#PED-11136       Go CVE Numbering Authority IDs added or updated with aliases:
      * GO-2025-3376 CVE-2025-22149 GHSA-675f-rq2r-jw82
      * GO-2025-3377 CVE-2025-22449 GHSA-q8fg-cp3q-5jwm
      * GO-2025-3379 CVE-2025-20033 GHSA-2549-xh72-qrpm
      * GO-2025-3380 CVE-2025-22445 GHSA-7rgp-4j56-fm79

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - Matrix Media Repo (MMR) is a highly configurable multi-homeserver media repository for Matrix. If SVG or
    JPEGXL thumbnailers are enabled (they are disabled by default), a user may upload a file which claims to
    be either of these types and request a thumbnail to invoke a different decoder in ImageMagick. In some
    ImageMagick installations, this includes the capability to run Ghostscript to decode the image/file. If
    MP4 thumbnailers are enabled (also disabled by default), the same issue as above may occur with the ffmpeg
    installation instead. MMR uses a number of other decoders for all other file types when preparing
    thumbnails. Theoretical issues are possible with these decoders, however in testing they were not possible
    to exploit. This is fixed in MMR v1.3.8. MMR now inspects the mimetype of media prior to thumbnailing, and
    picks a thumbnailer based on those results instead of relying on user-supplied values. This may lead to
    fewer thumbnails when obscure file shapes are used. This also helps narrow scope of theoretical issues
    with all decoders MMR uses for thumbnails. Users are advised to upgrade. Users unable to upgrade may
    disable the SVG, JPEGXL, and MP4 thumbnail types in the MMR config which prevents the decoders from being
    invoked. Further disabling uncommon file types on the server is recommended to limit risk surface.
    Containers and other similar technologies may also be used to limit the impact of vulnerabilities in
    external decoders, like ImageMagick and ffmpeg. Some installations of ImageMagick may disable "unsafe"
    file types, like PDFs, already. This option can be replicated to other environments as needed. ffmpeg may
    be compiled with limited decoders/codecs. The Docker image for MMR disables PDFs and similar formats by
    default. (CVE-2024-56515)

ID	Name	Product	Family	Type	Severity
214906	SUSE SLES15 / openSUSE 15 Security Update : govulncheck-vulndb (SUSE-SU-2025:0297-1)	Nessus	SuSE Local Security Checks	Local	high
418681	SCA: security update for github.com/t2bot/matrix-media-repo (GHSA-rcxc-wjgw-579r)	Tenable Cloud Security	SCA Checks	Local	medium
418681	SCA: security update for github.com/t2bot/matrix-media-repo (GHSA-rcxc-wjgw-579r)	Tenable Self-Hosted Container Security	SCA Checks	Local	medium

Detections

Analytics

CVE-2024-56515

medium

Tenable Plugins

high

medium

medium