Access of Memory Location Before Start of Buffer
CWE-786
The product reads or writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer.
We track 5 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 7.8.
Latest Access of Memory Location Before Start of Buffer vulnerabilities
- 7.0 High severity
Firefox: Access of Memory Location Before Start of Buffer
Memory safety bugs present in Firefox 126, Firefox ESR 115.11, and Thunderbird 115.11. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerabil
- 7.8 High severity
iOS and iPadOS: Out-of-bounds Write
An out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 16.7.8 and iPadOS 16.7.8, iOS 17.5 and iPadOS 17.5, macOS Monterey 12.7.5, macOS Sonoma 14.5, macOS Ventura 13.6.7, tvOS 17.5, visionOS 1.2. Processing a file
- 7.8 High severity
iOS and iPadOS: Access of Memory Location Before Start of Buffer
The issue was addressed with improved memory handling. This issue is fixed in iOS 17.5 and iPadOS 17.5, tvOS 17.5, visionOS 1.2, watchOS 10.5. An app may be able to execute arbitrary code with kernel privileges.
- 8.8 High severity
Safari: Access of Memory Location Before Start of Buffer
The issue was addressed with improved memory handling. This issue is fixed in Safari 17.5, iOS 17.5 and iPadOS 17.5, macOS Sonoma 14.5, tvOS 17.5, visionOS 1.2, watchOS 10.5. Processing web content may lead to arbitrary code execution.
- 7.5 High severity
squid: Improper Certificate Validation
Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using `--with-openssl` are vulnerable to a Denial of Service attack against SSL Certificate validation.