Mozilla Releases Security Updates for Firefox

Mozilla has released security updates to address multiple vulnerabilities in Firefox and Firefox ESR. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. NCCIC encourages users and administrators to review the Mozilla Security Advisories for Firefo...

DEBIAN-CVE-2018-5188

Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird 60, Thunderbird 52.9,...

CVE-2018-12387

A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content...

CVE-2018-12386

A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR 60.2.2 and Firefox 62.0.3...

CVE-2018-12386

A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR 60.2.2 and Firefox 62.0.3...

CVE-2018-12387

A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content...

CVE-2018-5156

A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occurring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash. This vulnerability affects Thunderbird 60, Firefox ESR 60.1, Firefox ESR...

CVE-2018-12381

Manually dragging and dropping an Outlook email message into the browser will trigger a page navigation when the message's mail columns are incorrectly interpreted as a URL. Note: this issue only affects Windows operating systems with Outlook installed. Other operating systems are not affected...

CVE-2018-12383

If a user saved passwords before Firefox 58 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Firefox 58. The new master password is...

CVE-2018-12368

Windows 10 does not warn users before opening executable files with the SettingContent-ms extension even when they have been downloaded from the internet and have the "Mark of the Web." Without the warning, unsuspecting users unfamiliar with this new file type might run an unwanted executable. Th...

CVE-2018-12367

In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer. This vulnerabilit...

CVE-2018-12369

WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. This allowed a malicious WebExtension to gain full browser permissions. This vulnerability affects Firefox ESR 60.1 and Firefox 61...

CVE-2018-12367

In the previous mitigations for Spectre, the resolution or precision of various methods was reduced to counteract the ability to measure precise time intervals. In that work PerformanceNavigationTiming was not adjusted but it was found that it could be used as a precision timer. This vulnerabilit...

CVE-2018-12365

A compromised IPC child process can escape the content sandbox and list the names of arbitrary files on the file system without user consent or interaction. This could result in exposure of private local files. This vulnerability affects Thunderbird 60, Thunderbird 52.9, Firefox ESR 60.1, Firefox...

CVE-2018-12366

An invalid grid size during QCMS color profile transformations can result in the out-of-bounds read interpreted as a float value. This could leak private data into the output. This vulnerability affects Thunderbird 60, Thunderbird 52.9, Firefox ESR 60.1, Firefox ESR 52.9, and Firefox 61...

CVE-2018-12362

An integer overflow can occur during graphics operations done by the Supplemental Streaming SIMD Extensions 3 SSSE3 scaler, resulting in a potentially exploitable crash. This vulnerability affects Thunderbird 60, Thunderbird 52.9, Firefox ESR 60.1, Firefox ESR 52.9, and Firefox 61...

CVE-2018-12361

An integer overflow can occur in the SwizzleData code while calculating buffer sizes. The overflowed value is used for subsequent graphics computations when their inputs are not sanitized which results in a potentially exploitable crash. This vulnerability affects Thunderbird 60, Firefox ESR 60.1...

Null pointer dereference

A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content...

Type confusion

A vulnerability in register allocation in JavaScript can lead to type confusion, allowing for an arbitrary read and write. This leads to remote code execution inside the sandboxed content process when triggered. This vulnerability affects Firefox ESR 60.2.2 and Firefox 62.0.3...

CVE-2018-12381

Manually dragging and dropping an Outlook email message into the browser will trigger a page navigation when the message's mail columns are incorrectly interpreted as a URL. Note: this issue only affects Windows operating systems with Outlook installed. Other operating systems are not affected...