A flaw was found in the SFTP backend in gvfs. When mounting a share and reading a file, a malicious SFTP server can cause read_reply() to process a length that exceeds the size requested by the client. The function does not verify the server-provided length against the allocated buffer size, causing the operation to write past the intended boundaries. This issue allows a malicious server to corrupt adjacent heap memory in the gvfsd-sftp process, resulting in a denial of service as the process aborts upon detecting the heap corruption or potentially allowing arbitrary code execution.
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Configurations
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History
21 Oct 2026, 06:16
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21 Oct 2026, 00:17
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20 Oct 2026, 17:17
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20 Oct 2026, 15:17
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20 Oct 2026, 14:17
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01 Oct 2026, 17:17
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30 Sep 2026, 23:17
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Information
Published : 2026-09-01 16:17
Updated : 2026-10-21 06:16
NVD link : CVE-2026-84268
Mitre link : CVE-2026-84268
CVE.ORG link : CVE-2026-84268
JSON object : View
Products Affected
No product.
CWE
CWE-122
Heap-based Buffer Overflow