CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0	$0-$5k	0.00

A vulnerability classified as critical was found in Rimarts Inc. Becky Internet Mail up to 1.26.3. Affected by this vulnerability is an unknown functionality of the component MIME Header Handler. The manipulation of the argument Content-type with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in Becky! Internet Mail client 1.26.03 and earlier allows remote attackers to cause a denial of service via a long Content-type: MIME header when the user replies to a message.

The bug was discovered 08/19/2000. The weakness was disclosed 10/20/2000 by Nobuo Miwa as not defined posting (Bugtraq). The advisory is shared at archives.neohapsis.com. This vulnerability is known as CVE-2000-0735. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 62 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 1.26.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (5110). The entry 15878 is pretty similar.

Productinfo

Vendor

• Rimarts Inc.

Name

• Becky Internet Mail

Version

• 1.26.0
• 1.26.1
• 1.26.2
• 1.26.3

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Becky Internet Mail 1.26.4

Timelineinfo

08/19/2000 🔍
08/19/2000 +0 days 🔍
10/20/2000 +62 days 🔍
10/20/2000 +0 days 🔍
03/10/2005 +1602 days 🔍
03/23/2005 +13 days 🔍
06/27/2014 +3383 days 🔍
05/31/2019 +1798 days 🔍

Sourcesinfo

Advisory: archives.neohapsis.com
Researcher: Nobuo Miwa
Status: Not defined
Confirmation: 🔍

CVE: CVE-2000-0735 (🔍)
X-Force: 5110
Vulnerability Center: 7415 - Signature Validation Vulnerability in Becky! S/MIME plug-in <= 1.26.03, Medium
SecurityFocus: 1588 - Becky! Internet Mail Header Buffer Overflow Vulnerability
OSVDB: 13730 - Becky Internet Mail header denial of service

See also: 🔍

Entryinfo

Created: 06/27/2014 15:10
Updated: 05/31/2019 00:08
Changes: 06/27/2014 15:10 (64), 05/31/2019 00:08 (3)
Complete: 🔍

Discussion

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