A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operation to access past the intended boundaries. This issue allows a malicious server to overflow a heap buffer and crash the gvfsd-afp process, resulting in a denial of service.

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Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8970-1 GVfs vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

To mitigate this vulnerability, do not connect to untrusted AFP servers.

History

Fri, 06 Nov 2026 01:15:00 +0000

Type Values Removed Values Added
First Time appeared Redhat rhel Els
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
cpe:/a:redhat:enterprise_linux:10
cpe:/a:redhat:enterprise_linux:8
cpe:/a:redhat:enterprise_linux:9
cpe:/o:redhat:rhel_els:6
cpe:/o:redhat:rhel_els:7
Vendors & Products Redhat rhel Els

Fri, 04 Sep 2026 03:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 01 Sep 2026 22:00:00 +0000

Type Values Removed Values Added
Description A flaw was found in the AFP backend in gvfs. When mounting a share, a malicious AFP server can cause the DSI read path to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the pre-sized reply buffer, causing the operation to access past the intended boundaries. This issue allows a malicious server to overflow a heap buffer and crash the gvfsd-afp process, resulting in a denial of service.
Title Gvfs: afp: heap-based buffer overflow in dsi read path
First Time appeared Redhat
Redhat enterprise Linux
Weaknesses CWE-122
CPEs cpe:/o:redhat:enterprise_linux:10
cpe:/o:redhat:enterprise_linux:6
cpe:/o:redhat:enterprise_linux:7
cpe:/o:redhat:enterprise_linux:8
cpe:/o:redhat:enterprise_linux:9
Vendors & Products Redhat
Redhat enterprise Linux
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: redhat

Published:

Updated: 2026-11-06T01:05:53.431Z

Reserved: 2026-09-01T14:05:54.145Z

Link: CVE-2026-84269

cve-icon Vulnrichment

Updated: 2026-09-04T02:04:43.423Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-01T16:17:37.690

Modified: 2026-11-06T01:17:55.813

Link: CVE-2026-84269

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T16:27:46Z

Weaknesses