Vulnerabilities > CVE-2015-1783 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
NONE Integrity impact
NONE Availability impact
PARTIAL 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 | 3 | |
| Application | 5 |
Common Weakness Enumeration (CWE)
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)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154321.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/154355.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-April/155382.html
- https://bugzilla.redhat.com/show_bug.cgi?id=1199925
- https://repos.entrouvert.org/lasso.git/commit/lasso/xml?id=6d854cef4211cdcdbc7446c978f23ab859847cdd