===================================================================== CERT-Renater Note d'Information No. 2022/VULN281 _____________________________________________________________________ DATE : 24/08/2022 HARDWARE PLATFORM(S): / OPERATING SYSTEM(S): Systems running Firefox versions prior to 104, ESR 102.2, ESR 91.13. ===================================================================== https://www.mozilla.org/en-US/security/advisories/mfsa2022-33/ https://www.mozilla.org/en-US/security/advisories/mfsa2022-34/ https://www.mozilla.org/en-US/security/advisories/mfsa2022-35/ _____________________________________________________________________ Mozilla Foundation Security Advisory 2022-33 Security Vulnerabilities fixed in Firefox 104 Announced August 23, 2022 Impact high Products Firefox Fixed in Firefox 104 #CVE-2022-38472: Address bar spoofing via XSLT error handling Reporter Armin Ebert Impact high Description An attacker could have abused XSLT error handling to associate attacker-controlled content with another origin which was displayed in the address bar. This could have been used to fool the user into submitting data intended for the spoofed origin. References Bug 1769155 #CVE-2022-38473: Cross-origin XSLT Documents would have inherited the parent's permissions Reporter Armin Ebert Impact high Description A cross-origin iframe referencing an XSLT document would inherit the parent domain's permissions (such as microphone or camera access). References Bug 1771685 #CVE-2022-38474: Recording notification not shown when microphone was recording on Android Reporter Agi Sferro Impact low Description A website that had permission to access the microphone could record audio without the audio notification being shown. This bug does not allow the attacker to bypass the permission prompt - it only affects the notification shown once permission has been granted. This bug only affects Firefox for Android. Other operating systems are unaffected. References Bug 1719511 #CVE-2022-38475: Attacker could write a value to a zero-length array Reporter Christian Holler Impact low Description An attacker could have written a value to the first element in a zero-length JavaScript array. Although the array was zero-length, the value was not written to an invalid memory address. References Bug 1773266 #CVE-2022-38477: Memory safety bugs fixed in Firefox 104 and Firefox ESR 102.2 Reporter Mozilla developers and community Impact high Description Mozilla developer Nika Layzell and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103 and Firefox ESR 102.1. 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 104 and Firefox ESR 102.2 #CVE-2022-38478: Memory safety bugs fixed in Firefox 104, Firefox ESR 102.2, and Firefox ESR 91.13 Reporter Mozilla developers and community Impact high Description Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. 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 104, Firefox ESR 102.2, and Firefox ESR 91.13 _____________________________________________________________________ Mozilla Foundation Security Advisory 2022-34 Security Vulnerabilities fixed in Firefox ESR 102.2 Announced August 23, 2022 Impact high Products Firefox ESR Fixed in Firefox ESR 102.2 #CVE-2022-38472: Address bar spoofing via XSLT error handling Reporter Armin Ebert Impact high Description An attacker could have abused XSLT error handling to associate attacker-controlled content with another origin which was displayed in the address bar. This could have been used to fool the user into submitting data intended for the spoofed origin. References Bug 1769155 #CVE-2022-38473: Cross-origin XSLT Documents would have inherited the parent's permissions Reporter Armin Ebert Impact high Description A cross-origin iframe referencing an XSLT document would inherit the parent domain's permissions (such as microphone or camera access). References Bug 1771685 #CVE-2022-38476: Data race and potential use-after-free in PK11_ChangePW Reporter Marian Laza Impact low Description A data race could occur in the PK11_ChangePW function, potentially leading to a use-after-free vulnerability. In Firefox, this lock protected the data when a user changed their master password. References Bug 1760998 #CVE-2022-38477: Memory safety bugs fixed in Firefox 104 and Firefox ESR 102.2 Reporter Mozilla developers and community Impact high Description Mozilla developer Nika Layzell and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103 and Firefox ESR 102.1. 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 104 and Firefox ESR 102.2 #CVE-2022-38478: Memory safety bugs fixed in Firefox 104, Firefox ESR 102.2, and Firefox ESR 91.13 Reporter Mozilla developers and community Impact high Description Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. 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 104, Firefox ESR 102.2, and Firefox ESR 91.13 _____________________________________________________________________ Mozilla Foundation Security Advisory 2022-35 Security Vulnerabilities fixed in Firefox ESR 91.13 Announced August 23, 2022 Impact high Products Firefox ESR Fixed in Firefox ESR 91.13 #CVE-2022-38472: Address bar spoofing via XSLT error handling Reporter Armin Ebert Impact high Description An attacker could have abused XSLT error handling to associate attacker-controlled content with another origin which was displayed in the address bar. This could have been used to fool the user into submitting data intended for the spoofed origin. References Bug 1769155 #CVE-2022-38473: Cross-origin XSLT Documents would have inherited the parent's permissions Reporter Armin Ebert Impact high Description A cross-origin iframe referencing an XSLT document would inherit the parent domain's permissions (such as microphone or camera access). References Bug 1771685 #CVE-2022-38478: Memory safety bugs fixed in Firefox 104, Firefox ESR 102.2, and Firefox ESR 91.13 Reporter Mozilla developers and community Impact high Description Members the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 103, Firefox ESR 102.1, and Firefox ESR 91.12. 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 104, Firefox ESR 102.2, and Firefox ESR 91.13 ========================================================= + 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 + =========================================================