Vulnerability Description
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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openbsd | Openssh | <= 5.8 |
| Freebsd | Freebsd | 7.3 |
| Netbsd | Netbsd | 5.0.2 |
| Openbsd | Openbsd | 4.7 |
Related Weaknesses (CWE)
References
- http://cvsweb.netbsd.org/cgi-bin/cvsweb.cgi/src/crypto/dist/ssh/Attic/sftp-glob.Patch
- http://cvsweb.netbsd.org/cgi-bin/cvsweb.cgi/src/crypto/dist/ssh/Attic/sftp.c#revPatch
- http://cxib.net/stuff/glob-0day.cExploit
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-008.txt.ascVendor Advisory
- http://securityreason.com/achievement_securityalert/89Exploit
- http://securityreason.com/exploitalert/9223Exploit
- http://securityreason.com/securityalert/8116
- http://cvsweb.netbsd.org/cgi-bin/cvsweb.cgi/src/crypto/dist/ssh/Attic/sftp-glob.Patch
- http://cvsweb.netbsd.org/cgi-bin/cvsweb.cgi/src/crypto/dist/ssh/Attic/sftp.c#revPatch
- http://cxib.net/stuff/glob-0day.cExploit
- http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2010-008.txt.ascVendor Advisory
- http://securityreason.com/achievement_securityalert/89Exploit
- http://securityreason.com/exploitalert/9223Exploit
- http://securityreason.com/securityalert/8116
FAQ
What is CVE-2010-4755?
CVE-2010-4755 is a vulnerability with a CVSS score of 4.0 (MEDIUM). 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 ...
How severe is CVE-2010-4755?
CVE-2010-4755 has been rated MEDIUM with a CVSS base score of 4.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2010-4755?
Check the references section above for vendor advisories and patch information. Affected products include: Openbsd Openssh, Freebsd Freebsd, Netbsd Netbsd, Openbsd Openbsd.