CVE catalog

CVE-2026-84267

A flaw was found in the SFTP backend in gvfs. When mounting a share, a malicious SFTP server can cause read_string() to allocate a buffer with a certain length but the function does not verify that th

[CVE catalog]

Severity
Medium · CVSS 4.3CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Published
Updated
Source
[NVD] · [CVE record]
EPSS
0.37% · Oct 25, 2026

A flaw was found in the SFTP backend in gvfs. When mounting a share, a malicious SFTP server can cause read_string() to allocate a buffer with a certain length but the function does not verify that the buffer is completely filled, leaving the remainder of the buffer containing uninitialized heap contents. If the server sends a short FXP_HANDLE reply, these uninitialized bytes are taken as the file handle. The client will then echo these uninitialized bytes back to the server on all subsequent requests using that handle. With a length of 128 bytes, this issue allows the malicious server to deterministically read uninitialized heap memory from the gvfsd-sftp process, leaking its heap base and the load address of the libgio library, resulting in a deterministic defeat of Address Space Layout Randomization (ASLR).

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debiangvfssid1.62.0-3fixed
Debiangvfsforky1.62.0-3fixed
Debiangvfstrixie1.57.2-2+deb13u1vulnerable
Debiangvfsbookworm1.50.3-1+deb12u1vulnerable
Ubuntugvfspro1.42.1-1ubuntu1vulnerable
Ubuntugvfspro1.42.2-1ubuntu3vulnerable
Ubuntugvfspro1.43.90-1ubuntu3vulnerable
Ubuntugvfspro1.43.92-1ubuntu1vulnerable
Ubuntugvfspro1.44.0-1ubuntu1vulnerable
Ubuntugvfspro1.44.1-1ubuntu1vulnerable
Ubuntugvfspro1.44.1-1ubuntu1.1vulnerable
Ubuntugvfspro1.44.1-1ubuntu1.2vulnerable
Ubuntugvfspro1.44.1-1ubuntu1.2+esm1vulnerable
Ubuntugvfs22.041.47.91-1ubuntu1vulnerable
Ubuntugvfs22.041.48.1-2ubuntu2vulnerable
Ubuntugvfs22.041.48.1-2ubuntu3vulnerable
Ubuntugvfs22.041.48.1-2ubuntu5vulnerable
Ubuntugvfs22.041.48.1-3vulnerable
Ubuntugvfs22.041.48.1-4vulnerable
Ubuntugvfs22.041.48.2-0ubuntu1vulnerable
Ubuntugvfs22.041.48.2-0ubuntu1.1vulnerable
Ubuntugvfs22.041.48.2-0ubuntu1.2vulnerable
Ubuntugvfs24.041.52.0-1vulnerable
Ubuntugvfs24.041.52.1-1build1vulnerable
Ubuntugvfs24.041.52.2-1vulnerable
Ubuntugvfs24.041.53.90-2vulnerable
Ubuntugvfs24.041.54.0-1build1vulnerable
Ubuntugvfs24.041.54.0-1build2vulnerable
Ubuntugvfs24.041.54.0-1build3vulnerable
Ubuntugvfs24.041.54.0-1ubuntu2vulnerable
Ubuntugvfs24.041.54.4-0ubuntu1~24.04.1vulnerable
Ubuntugvfs24.041.54.4-0ubuntu1~24.04.2vulnerable
Ubuntugvfs24.041.54.4-0ubuntu1~24.04.4vulnerable
Ubuntugvfs26.041.57.2-2ubuntu5vulnerable
Ubuntugvfs26.041.57.2-2ubuntu6vulnerable
Ubuntugvfs26.041.58.0-1ubuntu1vulnerable
Ubuntugvfs26.041.58.0-2vulnerable
Ubuntugvfs26.041.59.1-1vulnerable
Ubuntugvfs26.041.59.90-3vulnerable
Ubuntugvfs26.041.60.0-1vulnerable
Ubuntugvfs26.041.60.0-1ubuntu0.1vulnerable
Opensusegvfsleap 16.01.59.90-160000.3.1fixed
Susegvfslinux enterprise module for desktop applications 15 sp71.52.2-150600.3.9.1fixed
Susegvfslinux enterprise server 15 sp6-ltss1.52.2-150600.3.9.1fixed
Susegvfslinux enterprise server for sap applications 15 sp61.52.2-150600.3.9.1fixed
Susegvfslinux enterprise high performance computing 15 sp4-espos1.48.2-150400.4.15.1fixed
Susegvfslinux enterprise high performance computing 15 sp4-ltss1.48.2-150400.4.15.1fixed
Susegvfslinux enterprise high performance computing 15 sp5-espos1.48.2-150400.4.15.1fixed
Susegvfslinux enterprise high performance computing 15 sp5-ltss1.48.2-150400.4.15.1fixed
Susegvfslinux enterprise server 15 sp4-ltss1.48.2-150400.4.15.1fixed
Susegvfslinux enterprise server 15 sp5-ltss1.48.2-150400.4.15.1fixed
Susegvfslinux enterprise server for sap applications 15 sp41.48.2-150400.4.15.1fixed
Susegvfslinux enterprise server for sap applications 15 sp51.48.2-150400.4.15.1fixed
Susegvfslinux enterprise server 12 sp5-ltss1.28.3-18.12.1fixed
Susegvfslinux enterprise server ltss extended security 12 sp51.28.3-18.12.1fixed
Opensusegvfstumbleweed1.60.3-1.1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debiangvfssourcesid1.62.0-1not yet assignedNot reported[1146478]
Debiangvfssourceforky1.62.0-1not yet assignedNot reported[1146478]
Debiangvfssourcetrixie(unfixed)not yet assignedNot reported[1146478]
Debiangvfssourcebookworm(unfixed)not yet assignedNot reported[1146478]
Opensusegvfsrpmleap 16.01.59.90-160000.3.1Not reportedOPENSUSE-SU-2026:21875-1Not reported
Susegvfsrpmlinux enterprise module for desktop applications 15 sp71.52.2-150600.3.9.1Not reportedSUSE-SU-2026:4240-1Not reported
Susegvfsrpmlinux enterprise server 15 sp6-ltss1.52.2-150600.3.9.1Not reportedSUSE-SU-2026:4240-1Not reported
Susegvfsrpmlinux enterprise server for sap applications 15 sp61.52.2-150600.3.9.1Not reportedSUSE-SU-2026:4240-1Not reported
Susegvfsrpmlinux enterprise high performance computing 15 sp4-espos1.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise high performance computing 15 sp4-ltss1.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise high performance computing 15 sp5-espos1.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise high performance computing 15 sp5-ltss1.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise server 15 sp4-ltss1.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise server 15 sp5-ltss1.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise server for sap applications 15 sp41.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise server for sap applications 15 sp51.48.2-150400.4.15.1Not reportedSUSE-SU-2026:4238-1Not reported
Susegvfsrpmlinux enterprise server 12 sp5-ltss1.28.3-18.12.1Not reportedSUSE-SU-2026:4200-1Not reported
Susegvfsrpmlinux enterprise server ltss extended security 12 sp51.28.3-18.12.1Not reportedSUSE-SU-2026:4200-1Not reported
Opensusegvfsrpmtumbleweed1.60.3-1.1Not reportedOPENSUSE-SU-2026:11788-1Not reported

[Debian bug #1146478]

Notes

[trixie] gvfs: Minor issue [bookworm] gvfs: Minor issue

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [gvfs]Affected
    Details (2)
    • 1.50.3-1+deb12u1 · amd64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

    • 1.50.3-1+deb12u1 · arm64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

  • [gvfs-backends]Affected

    Source package: [gvfs]

    Details (2)
    • 1.50.3-1+deb12u1 · amd64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

    • 1.50.3-1+deb12u1 · arm64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

  • [gvfs-common]Affected

    Source package: [gvfs]

    Details (2)
    • 1.50.3-1+deb12u1 · all · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

    • 1.50.3-1+deb12u1 · all · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

  • [gvfs-daemons]Affected

    Source package: [gvfs]

    Details (2)
    • 1.50.3-1+deb12u1 · amd64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

    • 1.50.3-1+deb12u1 · arm64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

  • [gvfs-fuse]Affected

    Source package: [gvfs]

    Details (2)
    • 1.50.3-1+deb12u1 · amd64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

    • 1.50.3-1+deb12u1 · arm64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

  • [gvfs-libs]Affected

    Source package: [gvfs]

    Details (2)
    • 1.50.3-1+deb12u1 · amd64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

    • 1.50.3-1+deb12u1 · arm64 · bookworm

      Affected

      nvd · gvfs · debian · bookworm; nvd · gvfs · debian · 12

[Debian 13 (Trixie)]

  • [gvfs]Affected
    Details (2)
    • 1.57.2-2+deb13u1 · amd64 · trixie

      Affected

      nvd · gvfs · debian · 13

    • 1.57.2-2+deb13u1 · arm64 · trixie

      Affected

      nvd · gvfs · debian · 13

  • [gvfs-backends]Affected

    Source package: [gvfs]

    Details (2)
    • 1.57.2-2+deb13u1 · amd64 · trixie

      Affected

      nvd · gvfs · debian · 13

    • 1.57.2-2+deb13u1 · arm64 · trixie

      Affected

      nvd · gvfs · debian · 13

  • [gvfs-common]Affected

    Source package: [gvfs]

    Details (2)
    • 1.57.2-2+deb13u1 · all · trixie

      Affected

      nvd · gvfs · debian · 13

    • 1.57.2-2+deb13u1 · all · trixie

      Affected

      nvd · gvfs · debian · 13

  • [gvfs-daemons]Affected

    Source package: [gvfs]

    Details (2)
    • 1.57.2-2+deb13u1 · amd64 · trixie

      Affected

      nvd · gvfs · debian · 13

    • 1.57.2-2+deb13u1 · arm64 · trixie

      Affected

      nvd · gvfs · debian · 13

  • [gvfs-fuse]Affected

    Source package: [gvfs]

    Details (2)
    • 1.57.2-2+deb13u1 · amd64 · trixie

      Affected

      nvd · gvfs · debian · 13

    • 1.57.2-2+deb13u1 · arm64 · trixie

      Affected

      nvd · gvfs · debian · 13

  • [gvfs-libs]Affected

    Source package: [gvfs]

    Details (2)
    • 1.57.2-2+deb13u1 · amd64 · trixie

      Affected

      nvd · gvfs · debian · 13

    • 1.57.2-2+deb13u1 · arm64 · trixie

      Affected

      nvd · gvfs · debian · 13

[openSUSE Tumbleweed]

  • [gvfs]Affected

    Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Affected · Fixed: 1.60.3-1.1

      nvd · gvfs · opensuse · tumbleweed

  • Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Unknown · Fixed: 1.60.3-1.1

      Version impact unknown

      nvd · gvfs · opensuse · tumbleweed

  • Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Unknown · Fixed: 1.60.3-1.1

      Version impact unknown

      nvd · gvfs · opensuse · tumbleweed

  • Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Unknown · Fixed: 1.60.3-1.1

      Version impact unknown

      nvd · gvfs · opensuse · tumbleweed

  • Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Unknown · Fixed: 1.60.3-1.1

      Version impact unknown

      nvd · gvfs · opensuse · tumbleweed

  • [gvfs-backends]Unknown

    Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Unknown · Fixed: 1.60.3-1.1

      Version impact unknown

      nvd · gvfs · opensuse · tumbleweed

  • Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Unknown · Fixed: 1.60.3-1.1

      Version impact unknown

      nvd · gvfs · opensuse · tumbleweed

  • [gvfs-fuse]Unknown

    Source package: [gvfs]

    Details (1)
    • 1.60.2-1.1 · x86_64 · tumbleweed

      Unknown · Fixed: 1.60.3-1.1

      Version impact unknown

      nvd · gvfs · opensuse · tumbleweed

Next results

Observed:

References