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OpenAdvisories
High ALAS2-2026-3943 1 CVE

Important: gvfs security update (Amazon Linux 2)

Published Sep 28, 2026 · Updated Sep 28, 2026

Summary

Package updates are available for Amazon Linux 2 that fix the following vulnerabilities: CVE-2026-84268: 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.

Fixed packages 13

ReleasePackageFixed in
Amazon Linux · 2 gvfs 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-afc 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-afp 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-archive 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-client 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-debuginfo 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-devel 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-fuse 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-goa 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-gphoto2 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-mtp 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-smb 0:1.36.2-3.amzn2.0.3
Amazon Linux · 2 gvfs-tests 0:1.36.2-3.amzn2.0.3

Vulnerabilities 1

References

  • web
    https://alas.aws.amazon.com/cve/html/CVE-2026-84268.html