===================================================================== CERT-Renater Note d'Information No. 2023/VULN245 _____________________________________________________________________ DATE : 13/07/2023 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Firefox versions prior to 115.0.2, ESR 115.0.2, for iOS 115. ===================================================================== https://www.mozilla.org/en-US/security/advisories/mfsa2023-26/ https://www.mozilla.org/en-US/security/advisories/mfsa2023-25/ https://www.mozilla.org/en-US/security/advisories/mfsa2023-23/ https://www.mozilla.org/en-US/security/advisories/mfsa2023-22/ _____________________________________________________________________ Mozilla Foundation Security Advisory 2023-26 Security Vulnerabilities fixed in Firefox 115.0.2 and Firefox ESR 115.0.2 Announced July 11, 2023 Impact high Products Firefox, Firefox ESR Fixed in Firefox 115.0.2 Firefox ESR 115.0.2 #CVE-2023-3600: Use-after-free in workers Reporter Andrew McCreight Impact high Description During the worker lifecycle, a use-after-free condition could have occured, which could have led to a potentially exploitable crash. References Bug 1839703 _____________________________________________________________________ Mozilla Foundation Security Advisory 2023-25 Security Vulnerabilities fixed in Firefox for iOS 115 Announced July 4, 2023 Impact moderate Products Firefox for iOS Fixed in Firefox for iOS 115 #CVE-2023-37455: Media permission request prompt showing from background tab Reporter Kazuki Nomoto Impact moderate Description The permission request prompt from the site in the background tab was overlaid on top of the site in the foreground tab. References Bug 1786934 #CVE-2023-37456: Browser crashed when session restore was called with an empty body Reporter Artem Chaykin Impact low Description The session restore helper crashed whenever there was no parameter sent to the message handler. References Bug 1795496 _____________________________________________________________________ Mozilla Foundation Security Advisory 2023-23 Security Vulnerabilities fixed in Firefox ESR 102.13 Announced July 4, 2023 Impact high Products Firefox ESR Fixed in Firefox ESR 102.13 #CVE-2023-37201: Use-after-free in WebRTC certificate generation Reporter Irvan Kurniawan Impact high Description An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. References Bug 1826002 #CVE-2023-37202: Potential use-after-free from compartment mismatch in SpiderMonkey Reporter zx Impact high Description Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. References Bug 1834711 #CVE-2023-37207: Fullscreen notification obscured Reporter Shaheen Fazim Impact moderate Description A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. References Bug 1816287 #CVE-2023-37208: Lack of warning when opening Diagcab files Reporter P Umar Farooq Impact moderate Description When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. References Bug 1837675 #CVE-2023-37211: Memory safety bugs fixed in Firefox 115, Firefox ESR 102.13, and Thunderbird 102.13 Reporter Andrew McCreight, Matthew Gaudet, Tom Ritter, and the Mozilla Fuzzing Team, Impact high Description Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. 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. References Memory safety bugs fixed in Firefox 115, Firefox ESR 102.13, and Thunderbird 102.13 _____________________________________________________________________ Mozilla Foundation Security Advisory 2023-22 Security Vulnerabilities fixed in Firefox 115 Announced July 4, 2023 Impact high Products Firefox Fixed in Firefox 115 #CVE-2023-3482: Block all cookies bypass for localstorage Reporter Martin Hostettler Impact moderate Description When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. References Bug 1839464 #CVE-2023-37201: Use-after-free in WebRTC certificate generation Reporter Irvan Kurniawan Impact high Description An attacker could have triggered a use-after-free condition when creating a WebRTC connection over HTTPS. References Bug 1826002 #CVE-2023-37202: Potential use-after-free from compartment mismatch in SpiderMonkey Reporter zx Impact high Description Cross-compartment wrappers wrapping a scripted proxy could have caused objects from other compartments to be stored in the main compartment resulting in a use-after-free. References Bug 1834711 #CVE-2023-37203: Drag and Drop API may provide access to local system files Reporter Paul Nickerson Impact moderate Description Insufficient validation in the Drag and Drop API in conjunction with social engineering, may have allowed an attacker to trick end-users into creating a shortcut to local system files. This could have been leveraged to execute arbitrary code. References Bug 291640 #CVE-2023-37204: Fullscreen notification obscured via option element Reporter Irvan Kurniawan Impact moderate Description A website could have obscured the fullscreen notification by using an option element by introducing lag via an expensive computational function. This could have led to user confusion and possible spoofing attacks. References Bug 1832195 #CVE-2023-37205: URL spoofing in address bar using RTL characters Reporter Rohan Sharma Impact moderate Description The use of RTL Arabic characters in the address bar may have allowed for URL spoofing. References Bug 1704420 #CVE-2023-37206: Insufficient validation of symlinks in the FileSystem API Reporter Ameen Basha M K Impact moderate Description Uploading files which contain symlinks may have allowed an attacker to trick a user into submitting sensitive data to a malicious website. References Bug 1813299 #CVE-2023-37207: Fullscreen notification obscured Reporter Shaheen Fazim Impact moderate Description A website could have obscured the fullscreen notification by using a URL with a scheme handled by an external program, such as a mailto URL. This could have led to user confusion and possible spoofing attacks. References Bug 1816287 #CVE-2023-37208: Lack of warning when opening Diagcab files Reporter P Umar Farooq Impact moderate Description When opening Diagcab files, Firefox did not warn the user that these files may contain malicious code. References Bug 1837675 #CVE-2023-37209: Use-after-free in `NotifyOnHistoryReload` Reporter Simon Descarpentries Impact moderate Description A use-after-free condition existed in NotifyOnHistoryReload where a LoadingSessionHistoryEntry object was freed and a reference to that object remained. This resulted in a potentially exploitable condition when the reference to that object was later reused. References Bug 1837993 #CVE-2023-37210: Full-screen mode exit prevention Reporter Hafiizh Impact low Description A website could prevent a user from exiting full-screen mode via alert and prompt calls. This could lead to user confusion and possible spoofing attacks. References Bug 1821886 #CVE-2023-37211: Memory safety bugs fixed in Firefox 115, Firefox ESR 102.13, and Thunderbird 102.13 Reporter Andrew McCreight, Matthew Gaudet, Tom Ritter, and the Mozilla Fuzzing Team, Impact high Description Memory safety bugs present in Firefox 114, Firefox ESR 102.12, and Thunderbird 102.12. 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. References Memory safety bugs fixed in Firefox 115, Firefox ESR 102.13, and Thunderbird 102.13 #CVE-2023-37212: Memory safety bugs fixed in Firefox 115 Reporter Andrew McCreight, and the Mozilla Fuzzing Team Impact high Description Memory safety bugs present in Firefox 114. 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. References Memory safety bugs fixed in Firefox 115 ========================================================= + CERT-RENATER | tel : 01-53-94-20-44 + + 23/25 Rue Daviel | fax : 01-53-94-20-41 + + 75013 Paris | email:cert@support.renater.fr + =========================================================