Symantec Brightmail AntiSpam up to 4.3.8.29 MIME denial of service

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Symantec Brightmail AntiSpam up to 4.3.8.29. Affected by this issue is some unknown functionality of the component MIME Handler. The manipulation leads to denial of service. This vulnerability is referenced as CVE-2005-4695. Remote exploitation of the attack is possible. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Symantec Brightmail AntiSpam up to 4.3.8.29 (Anti-Spam Software) and classified as critical. This issue affects some unknown processing of the component MIME Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability. The summary by CVE is:

Symantec Brightmail AntiSpam 6.0 build 1 and 2 allows remote attackers to cause a denial of service (bmserver component termination) via malformed MIME messages.

The bug was discovered 09/07/2005. The weakness was published 10/12/2005 with Symantec (Website). The advisory is shared at securityresponse.symantec.com. The identification of this vulnerability is CVE-2005-4695 since 02/01/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 35 days. During that time the estimated underground price was around $5k-$25k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 74194 (Symantec Brightmail AntiSpam Winmail.DAT Decomposer Denial of Service Vulnerability).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at ftp.symantec.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (22164), SecurityFocus (BID 15087†), OSVDB (19953†), Secunia (SA17170†) and SecurityTracker (ID 1015051†). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: ftp.symantec.com

Timelineinfo

09/07/2005 🔍
09/07/2005 +0 days 🔍
10/12/2005 +35 days 🔍
10/13/2005 +1 days 🔍
10/13/2005 +0 days 🔍
10/13/2005 +0 days 🔍
10/17/2005 +3 days 🔍
12/31/2005 +75 days 🔍
02/01/2006 +32 days 🔍
05/16/2006 +104 days 🔍
06/26/2025 +6981 days 🔍

Sourcesinfo

Vendor: symantec.com

Advisory: securityresponse.symantec.com
Researcher: http://www.symantec.com
Organization: Symantec
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2005-4695 (🔍)
GCVE (CVE): GCVE-0-2005-4695
GCVE (VulDB): GCVE-100-1805
X-Force: 22164
SecurityFocus: 15087 - Symantec Brightmail AntiSpam Malformed MIME Message Denial Of Service Vulnerability
Secunia: 17170 - Symantec Brightmail AntiSpam MIME Processing Denial of Service, Moderately Critical
OSVDB: 19953 - Symantec Brightmail AntiSpam bmserver Malformed MIME Content DoS
SecurityTracker: 1015051
Vulnerability Center: 11445 - Symantec BrightMail AntiSpam DoS via MIME Messages, Medium
Vupen: ADV-2005-2076

Entryinfo

Created: 10/17/2005 12:21
Updated: 06/26/2025 05:15
Changes: 10/17/2005 12:21 (82), 07/04/2019 17:48 (1), 06/26/2025 05:15 (17)
Complete: 🔍
Cache ID: 216:BBD:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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