Vulnerabilities > CVE-2015-1783 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products

CVSS 7.5 - HIGH

Attack vector

NETWORK

Attack complexity

LOW

Privileges required

NONE

Confidentiality impact

NONE

Integrity impact

NONE

Availability impact

HIGH

network

low complexity

fedoraproject

entrouvert

CWE-119

nessus

NVD

Published: 2017-08-11

Updated: 2024-11-21

Summary

The prefix variable in the get_or_define_ns function in Lasso before commit 6d854cef4211cdcdbc7446c978f23ab859847cdd allows remote attackers to cause a denial of service (uninitialized memory access and application crash) via unspecified vectors.

Vulnerable Configurations

Part	Description	Count
OS	Fedoraproject Fedoraproject Fedora 22 Fedoraproject Fedora 20 Fedoraproject Fedora 21	3
Application	Entrouvert Entrouvert Lasso 0.4.0 Entrouvert Lasso 0.4.1 Entrouvert Lasso 0.6.0 Entrouvert Lasso 0.6.1 Entrouvert Lasso 0.6.2 Entrouvert Lasso 0.6.3 Entrouvert Lasso 0.6.4 Entrouvert Lasso 1.9.9.0 Entrouvert Lasso 2.0.0-1 Entrouvert Lasso 2.2.1 Entrouvert Lasso 2.2.1-0 Entrouvert Lasso 2.2.2 Entrouvert Lasso 2.2.90 Entrouvert Lasso 2.3.0 Entrouvert Lasso 2.3.1 Entrouvert Lasso 2.3.2 Entrouvert Lasso 2.3.3 Entrouvert Lasso 2.3.4 Entrouvert Lasso 2.3.5 Entrouvert Lasso 2.3.6 Entrouvert Lasso 2.4.0	21

Common Weakness Enumeration (CWE)

CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer

Common Attack Pattern Enumeration and Classification (CAPEC)

Buffer Overflow via Environment Variables
This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
Overflow Buffers
Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
Client-side Injection-induced Buffer Overflow
This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
Filter Failure through Buffer Overflow
In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
MIME Conversion
An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

NASL family	Fedora Local Security Checks
NASL id	FEDORA_2015-4848.NASL
description	Security fix for CVE-2015-1783 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-06-05
modified	2015-04-07
plugin id	82614
published	2015-04-07
reporter	This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
source	https://www.tenable.com/plugins/nessus/82614
title	Fedora 20 : lasso-2.4.1-1.fc20 (2015-4848)

NASL family	Fedora Local Security Checks
NASL id	FEDORA_2015-4807.NASL
description	Security fix for CVE-2015-1783 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-06-05
modified	2015-04-07
plugin id	82613
published	2015-04-07
reporter	This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
source	https://www.tenable.com/plugins/nessus/82613
title	Fedora 21 : lasso-2.4.1-1.fc21 (2015-4807)

NASL family	Fedora Local Security Checks
NASL id	FEDORA_2015-4821.NASL
description	Security fix for CVE-2015-1783 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
last seen	2020-06-05
modified	2015-04-22
plugin id	82947
published	2015-04-22
reporter	This script is Copyright (C) 2015-2020 Tenable Network Security, Inc.
source	https://www.tenable.com/plugins/nessus/82947
title	Fedora 22 : lasso-2.4.1-3.fc22 (2015-4821)

Summary

Vulnerable Configurations

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

Nessus

References