Design/Logic Flaw

libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454...

CVE-2019-20838

libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454...

CVE-2019-20838

libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454...

CVE-2019-20838

CVE-2019-20838 is a PCRE/PCRE2 vulnerability where libpcre had a subject buffer over-read during JIT compilation in non-UTF mode when the pattern uses \X or \R with more than one fixed quantifier. Affected versions include PCRE up to 8.43; remediation is to upgrade to a patched PCRE (e.g., 8.43+;...

PCRE2: Denial of service

Background PCRE2 is a project based on PCRE Perl Compatible Regular Expressions which has a new and revised API. Description PCRE2 has a flaw when handling JIT-compiled regex using the \X pattern. Impact An attacker could cause a possible Denial of Service condition. Workaround There is no known...

Remote Code Execution

chakracore is vulnerable to remote code execution. The vulnerability exists as the JIT may not bail out when an object was marked as temporary during an implicit call...

Mozilla Firefox JIT Compiler Memory Leak (CVE-2018-12387)

A memory leak vulnerability exists in Mozilla Firefox JIT Compiler. Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code on the affected system or cause application crashes...

JSC JIT Out-Of-Bounds Access

JSC: JIT: Incorrect Common Subexpression Elimination for ArithNegate, leading to OOB accesses The DFG and FTL JIT compilers incorrectly replace Checked with Unchecked ArithNegate operations and vice versa during Common Subexpression Elimination. This can then be exploited to cause out-of-bounds...

JSC JIT Out-Of-Bounds Access Vulnerability

The DFG and FTL JIT compilers incorrectly replace Checked with Unchecked ArithNegate operations and vice versa during Common Subexpression Elimination. This can then be exploited to cause out-of-bounds accesses and potentially other memory safety violations. JSC: JIT: Incorrect Common Subexpressi...

Switching from a “Just in Time” delivery system should include planning ahead

As it becomes clear that some things will never again be the same after the global coronavirus pandemic, it is time to prepare for the future. The cybersecurity implications of upcoming changes will be most noticeable in organizations that rely on security models like the software defined...

Exploit for Type Confusion in Mozilla Firefox

SpiderMonkey - CVE-2019-11707 Bug: https://bugs.chromium.org/...

CVE-2019-9791

The type inference system allows the compilation of functions that can cause type confusions between arbitrary objects when compiled through the IonMonkey just-in-time JIT compiler and when the constructor function is entered through on-stack replacement OSR. This allows for possible arbitrary...

CVE-2019-9792

The IonMonkey just-in-time JIT compiler can leak an internal JSOPTIMIZEDOUT magic value to the running script during a bailout. This magic value can then be used by JavaScript to achieve memory corruption, which results in a potentially exploitable crash. This vulnerability affects Thunderbird...

CVE-2019-9810

Incorrect alias information in IonMonkey JIT compiler for Array.prototype.slice method may lead to missing bounds check and a buffer overflow. This vulnerability affects Firefox 66.0.1, Firefox ESR 60.6.1, and Thunderbird 60.6.1...

Google Chrome 67_ 68 and 69 - Object.create Type Confusion (Metasploit)

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Google Chrome 67, 68 and 69 Object.create exploit', 'Description' = %q This modules exploits a type confusion in Google Chromes JIT compiler. The...

NewStart CGSL CORE 5.04 / MAIN 5.04 : thunderbird Multiple Vulnerabilities (NS-SA-2020-0010)

The remote NewStart CGSL host, running version CORE 5.04 / MAIN 5.04, has thunderbird packages installed that are affected by multiple vulnerabilities: - When pasting a tag from the clipboard into a rich text editor, the CSS sanitizer does not escape characters. Because the resulting string is...

Google Chrome 67 / 68 / 69 Object.create Type Confusion Exploit

This module requires Metasploit: https://metasploit.com/download Current source: https://github.com/rapid7/metasploit-framework class MetasploitModule 'Google Chrome 67, 68 and 69 Object.create exploit', 'Description' = %q This modules exploits a type confusion in Google Chromes JIT compiler. The...

CVE-2019-17026

Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR 68.4.1, Thunderbird 68.4.1, and Firefox 72.0.1...

DEBIAN-CVE-2019-17026

Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR 68.4.1, Thunderbird 68.4.1, and Firefox 72.0.1...

CVE-2019-17026

Incorrect alias information in IonMonkey JIT compiler for setting array elements could lead to a type confusion. We are aware of targeted attacks in the wild abusing this flaw. This vulnerability affects Firefox ESR 68.4.1, Thunderbird 68.4.1, and Firefox 72.0.1...