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Mageia 6: MGASA-2019-0156 Moderate: Openssh File Manipulation

mageia
Calendar Grey May 12, 2019
Dist Mageia Esm H88
MGASA-2022-0198 enhances openssl to mitigate severe weaknesses in data protection and encryption protocols.
Updated openssh packages fix security vulnerabilities: Due to missing character encoding in the progress display, the object name can be used to manipulate the client output, for ...

Summary

Updated openssh packages fix security vulnerabilities:
Due to missing character encoding in the progress display, the object name can be used to manipulate the client output, for example to employ ANSI codes to hide additional files being transferred (CVE-2019-6109).
Due to scp client insufficient input validation in path names sent by server, a malicious server can do arbitrary file overwrites in target directory. If the recursive (-r) option is provided, the server can also manipulate subdirectories as well (CVE-2019-6111).
The check added in this version can lead to regression if the client and the server have differences in wildcard expansion rules. If the server is trusted for that purpose, the check can be disabled with a new -T option to the scp client.

References

- https://bugs.mageia.org/show_bug.cgi?id=24308

- https://lists.debian.org/debian-security-announce/2019/msg00026.html

- https://www.cve.org/CVERecord?id=CVE-2019-6109

- https://www.cve.org/CVERecord?id=CVE-2019-6111

Resolution

SRPMS

- 6/core/openssh-7.5p1-2.4.mga6

Publication date: 12 May 2019
URL: https://advisories.mageia.org/MGASA-2019-0156.html
Type: security
CVE: CVE-2019-6109, CVE-2019-6111

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