Vulnerabilities > CVE-2016-8703 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Potrace Project Potrace
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Heap-based buffer overflow in the bm_readbody_bmp function in bitmap_io.c in potrace before 1.13 allows remote attackers to have unspecified impact via a crafted BMP image, a different vulnerability than CVE-2016-8698, CVE-2016-8699, CVE-2016-8700, CVE-2016-8701, and CVE-2016-8702.
Vulnerable Configurations
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 | Debian Local Security Checks |
| NASL id | DEBIAN_DLA-675.NASL |
| description | Multiple vulnerabilities have been found in potrace. CVE-2013-7437 Multiple integer overflows in potrace 1.11 allow remote attackers to cause a denial of service (crash) via large dimensions in a BMP image, which triggers a buffer overflow. This bug was reported by Murray McAllister of the Red Hat Security Response Team. CVE-2016-8694 CVE-2016-8695 CVE-2016-8696 Multiple NULL pointer dereferences in bm_readbody_bmp. This bug was discovered by Agostino Sarubbo of Gentoo. CVE-2016-8697 Division by zero in bm_new. This bug was discovered by Agostino Sarubbo of Gentoo. CVE-2016-8698 CVE-2016-8699 CVE-2016-8700 CVE-2016-8701 CVE-2016-8702 CVE-2016-8703 Multiple heap-based buffer overflows in bm_readbody_bmp. This bug was discovered by Agostino Sarubbo of Gentoo. For Debian 7 |
| last seen | 2020-03-17 |
| modified | 2016-10-27 |
| plugin id | 94293 |
| published | 2016-10-27 |
| reporter | This script is Copyright (C) 2016-2020 Tenable Network Security, Inc. |
| source | https://www.tenable.com/plugins/nessus/94293 |
| title | Debian DLA-675-1 : potrace security update |
| code | |
References
- http://potrace.sourceforge.net/ChangeLog
- http://www.openwall.com/lists/oss-security/2016/08/18/11
- http://www.openwall.com/lists/oss-security/2016/10/16/12
- http://www.securityfocus.com/bid/93778
- https://blogs.gentoo.org/ago/2016/08/08/potrace-multiplesix-heap-based-buffer-overflow-in-bm_readbody_bmp-bitmap_io-c/