medium
4
CWE
399
Advisory Published
Updated

CVE-2010-4755

First published: Wed Mar 02 2011(Updated: )

The (1) remote_glob function in sftp-glob.c and the (2) process_put function in sftp.c in OpenSSH 5.8 and earlier, as used in FreeBSD 7.3 and 8.1, NetBSD 5.0.2, OpenBSD 4.7, and other products, allow remote authenticated users to cause a denial of service (CPU and memory consumption) via crafted glob expressions that do not match any pathnames, as demonstrated by glob expressions in SSH_FXP_STAT requests to an sftp daemon, a different vulnerability than CVE-2010-2632.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
OpenSSH<=5.8
OpenSSH=1.2
OpenSSH=1.2.1
OpenSSH=1.2.2
OpenSSH=1.2.3
OpenSSH=1.2.27
OpenSSH=1.3
OpenSSH=1.5
OpenSSH=1.5.7
OpenSSH=1.5.8
OpenSSH=2.1
OpenSSH=2.1.1
OpenSSH=2.2
OpenSSH=2.3
OpenSSH=2.3.1
OpenSSH=2.5
OpenSSH=2.5.1
OpenSSH=2.5.2
OpenSSH=2.9
OpenSSH=2.9.9
OpenSSH=2.9.9p2
OpenSSH=2.9p1
OpenSSH=2.9p2
OpenSSH=3.0
OpenSSH=3.0.1
OpenSSH=3.0.1p1
OpenSSH=3.0.2
OpenSSH=3.0.2p1
OpenSSH=3.0p1
OpenSSH=3.1
OpenSSH=3.1p1
OpenSSH=3.2
OpenSSH=3.2.2
OpenSSH=3.2.2p1
OpenSSH=3.2.3p1
OpenSSH=3.3
OpenSSH=3.3p1
OpenSSH=3.4
OpenSSH=3.4p1
OpenSSH=3.5
OpenSSH=3.5p1
OpenSSH=3.6
OpenSSH=3.6.1
OpenSSH=3.6.1p1
OpenSSH=3.6.1p2
OpenSSH=3.7
OpenSSH=3.7.1
OpenSSH=3.7.1p1
OpenSSH=3.7.1p2
OpenSSH=3.8
OpenSSH=3.8.1
OpenSSH=3.8.1p1
OpenSSH=3.9
OpenSSH=3.9.1
OpenSSH=3.9.1p1
OpenSSH=4.0
OpenSSH=4.0p1
OpenSSH=4.1
OpenSSH=4.1p1
OpenSSH=4.2
OpenSSH=4.2p1
OpenSSH=4.3
OpenSSH=4.3p1
OpenSSH=4.3p2
OpenSSH=4.4
OpenSSH=4.4p1
OpenSSH=4.5
OpenSSH=4.6
OpenSSH=4.7
OpenSSH=4.7p1
OpenSSH=4.8
OpenSSH=4.9
OpenSSH=5.0
OpenSSH=5.1
OpenSSH=5.2
OpenSSH=5.3
OpenSSH=5.4
OpenSSH=5.5
OpenSSH=5.6
OpenSSH=5.7
FreeBSD Kernel=7.3
FreeBSD Kernel=8.1
NetBSD current=5.0.2
OpenBSD=4.7

Remedy

http://cvsweb.netbsd.org/cgi-bin/cvsweb.cgi/src/crypto/dist/ssh/Attic/sftp-glob.c#rev1.13.12.1

Remedy

http://cvsweb.netbsd.org/cgi-bin/cvsweb.cgi/src/crypto/dist/ssh/Attic/sftp.c#rev1.21.6.1

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2010-4755?

    CVE-2010-4755 has a medium severity level, indicating potential denial of service risks.

  • How do I fix CVE-2010-4755?

    To fix CVE-2010-4755, upgrade OpenSSH to version 5.9 or later, as this issue has been patched.

  • What systems are affected by CVE-2010-4755?

    CVE-2010-4755 affects OpenSSH versions 5.8 and earlier, and is present in various systems including FreeBSD, NetBSD, and OpenBSD.

  • What type of vulnerability is CVE-2010-4755?

    CVE-2010-4755 is a denial of service vulnerability that can lead to high CPU and memory consumption on affected systems.

  • Who is affected by CVE-2010-4755?

    Remote authenticated users can exploit CVE-2010-4755 to cause a denial of service on the affected OpenSSH versions.

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