pcre2 security and enhancement update

10.32-2 - Fix CVE-2019-20454 a crash when \X is used without UTF mode in a JIT bug 1734468...

RHEL 8 : pcre2 (RHSA-2020:4539)

The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:4539 advisory. The pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching...

RLSA-2020:4539 Moderate: pcre2 security and enhancement update

The pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching using the same syntax and semantics as Perl. Security Fixes: pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode CVE-2019-20454 For...

ALSA-2020:4539 Moderate: pcre2 security and enhancement update

The pcre2 package contains a new generation of the Perl Compatible Regular Expression libraries for implementing regular expression pattern matching using the same syntax and semantics as Perl. Security Fixes: pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode CVE-2019-20454 For...

Best practices for defending Azure Virtual Machines

One of the things that our Detection and Response Team DART and Customer Service and Support CSS security teams see frequently during investigation of customer incidents are attacks on virtual machines from the internet. This is one area in the cloud security shared responsibility model where...

pcre: Out of bounds read in JIT mode when \X is used in non-UTF mode

An out-of-bounds read was discovered in PCRE when the pattern "\X" is JIT compiled and used to match specially crafted subjects in non-UTF mode. Applications that use PCRE to process untrusted input may be vulnerable to this flaw. An attacker could use this flaw to crash the application...

RLSA-2020:3662 Moderate: php:7.3 security, bug fix, and enhancement update

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Server. The following packages have been upgraded to a later upstream version: php 7.3.20. BZ1856655 Security Fixes: php: Out-of-bounds read due to integer overflow in iconvmimedecodeheaders CVE-2019-11039 php: Buffer...

SUSE SLES15 Security Update : java-1_8_0-ibm (SUSE-SU-2020:2453-1)

This update for java-180-ibm fixes the following issues : Update to Java 8.0 Service Refresh 6 Fix Pack 15 bsc1175259, bsc1174157 CVE-2020-14577 CVE-2020-14578 CVE-2020-14579 CVE-2020-14581 CVE-2020-14556 CVE-2020-14621 CVE-2020-14593 CVE-2020-14583 CVE-2019-17639 - Class Libraries : -...

SUSE SLES12 Security Update : java-1_8_0-ibm (SUSE-SU-2020:2461-1)

This update for java-180-ibm fixes the following issues : Update to Java 8.0 Service Refresh 6 Fix Pack 15 bsc1175259, bsc1174157 CVE-2020-14577 CVE-2020-14578 CVE-2020-14579 CVE-2020-14581 CVE-2020-14556 CVE-2020-14621 CVE-2020-14593 CVE-2020-14583 CVE-2019-17639 - Class Libraries : -...

SUSE-SU-2020:2461-1 Security update for java-1_8_0-ibm

This update for java-180-ibm fixes the following issues: - Update to Java 8.0 Service Refresh 6 Fix Pack 15 bsc1175259, bsc1174157 CVE-2020-14577 CVE-2020-14578 CVE-2020-14579 CVE-2020-14581 CVE-2020-14556 CVE-2020-14621 CVE-2020-14593 CVE-2020-14583 CVE-2019-17639 Class Libraries: -...

SUSE-SU-2020:2453-1 Security update for java-1_8_0-ibm

This update for java-180-ibm fixes the following issues: - Update to Java 8.0 Service Refresh 6 Fix Pack 15 bsc1175259, bsc1174157 CVE-2020-14577 CVE-2020-14578 CVE-2020-14579 CVE-2020-14581 CVE-2020-14556 CVE-2020-14621 CVE-2020-14593 CVE-2020-14583 CVE-2019-17639 Class Libraries: -...

JITSploitation III: Subverting Control Flow

Posted by Samuel Groß, Project Zero This three-part series highlights the technical challenges involved in finding and exploiting JavaScript engine vulnerabilities in modern web browsers and evaluates current exploit mitigation technologies. The exploited vulnerability, CVE-2020-9802, was fixed i...

JITSploitation I: A JIT Bug

By Samuel Groß, Project Zero This three-part series highlights the technical challenges involved in finding and exploiting JavaScript engine vulnerabilities in modern web browsers and evaluates current exploit mitigation technologies. The exploited vulnerability, CVE-2020-9802, was fixed in iOS...

Mozilla: Type confusion for special arguments in IonMonkey

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR 78.1, Firefox 79, and Thunderbird 78.1...

Mozilla: Type confusion for special arguments in IonMonkey

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR 78.1, Firefox 79, and Thunderbird 78.1...

Mozilla: Type confusion for special arguments in IonMonkey

JIT optimizations involving the Javascript arguments object could confuse later optimizations. This risk was already mitigated by various precautions in the code, resulting in this bug rated at only moderate severity. This vulnerability affects Firefox ESR 78.1, Firefox 79, and Thunderbird 78.1...

August 20, 2020-KB4570723 Cumulative Update Preview for .NET Framework 3.5 and 4.8 for Windows 10 Version 1903, Windows Server 1903 RTM, Windows 10, version 1909 and Windows Server, version 1909

None None...

CVE-2019-9813

Incorrect handling of proto mutations may lead to type confusion in IonMonkey JIT code and can be leveraged for arbitrary memory read and write. This vulnerability affects Firefox 66.0.1, Firefox ESR 60.6.1, and Thunderbird 60.6.1...

WebKit On iOS PAC / JIT Hardening Bypass Vulnerability

PAC and JIT Hardening Bypass in WebKit on iOS As per discussions with email protected, Apple would like to treat the PAC bypass described here as a security vulnerability by itself. The bypass was initially reported without a deadline on May 6. After receiving the reply that they will treat it as...

Safari Webkit For iOS 7.1.2 JIT Optimization Bug Exploit

This Metasploit module exploits a JIT optimization bug in Safari Webkit. This allows us to write shellcode to an RWX memory section in JavaScriptCore and execute it. The shellcode contains a kernel exploit CVE-2016-4669 that obtains kernel rw, obtains root and disables code signing. Finally we...