Vulnerability Assessment & Network Security Forums



If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important.  If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.


Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200409-16] Samba: Denial of Service vulnerabilities


Vulnerability Assessment Details

[GLSA-200409-16] Samba: Denial of Service vulnerabilities

Vulnerability Assessment Summary
Samba: Denial of Service vulnerabilities

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200409-16
(Samba: Denial of Service vulnerabilities)


There is a defect in smbd's ASN.1 parsing. A bad packet received during the
authentication request could throw newly-spawned smbd processes into an
infinite loop (CVE-2004-0807). Another defect was found in nmbd's
processing of mailslot packets, where a bad NetBIOS request could crash the
nmbd process (CVE-2004-0808).

Impact

A remote attacker could send specially crafted packets to trigger both
defects. The ASN.1 parsing issue can be exploited to exhaust all available
memory on the Samba host, potentially denying all service to that server.
The nmbd issue can be exploited to crash the nmbd process, resulting in a
Denial of Service condition on the Samba server.

Workaround

There is no known workaround at this time.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0807
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0808


Solution:
All Samba 3.x users should upgrade to the latest version:
# emerge sync
# emerge -pv ">=net-fs/samba-3.0.7"
# emerge ">=net-fs/samba-3.0.7"


Network Security Threat Level: Medium


Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

Cables, Connectors

DELL POWEREDGE M620 REF TWO E5-2670V2 2.50GHZ 64GB 2 X 1.2TB 10K SAS H710
$2319.0
DELL POWEREDGE M620 REF TWO E5-2670V2 2.50GHZ 64GB 2 X 1.2TB 10K SAS H710 pictureDell PowerEdge M630 Blade 2 x E5-2690v3, 1 x 300GB 10K, H730P 2GB, 32GB Ram
$4129.0
Dell PowerEdge M630 Blade 2 x E5-2690v3, 1 x 300GB 10K, H730P 2GB, 32GB Ram pictureLOT OF 7 - HP ProLiant BL460c Gen8 Blade (No CPU/RAM/HDD) 735151-B21 666157-B21
$823.13
LOT OF 7 - HP ProLiant BL460c Gen8 Blade (No CPU/RAM/HDD) 735151-B21 666157-B21 pictureDell M630 Blade Wrty thru 4-5-19. 2*E5-2690v3, 1*300GB 10K, H730P 2GB, 64GB Ram
$4329.0
Dell M630 Blade Wrty thru 4-5-19. 2*E5-2690v3, 1*300GB 10K, H730P 2GB, 64GB Ram picture


Discussions

No Discussions have been posted on this vulnerability.