USN-3477-1

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USN-3477-1

Summary: firefox vulnerabilities

Details: Multiple security issues were discovered in Firefox. If a user were tricked in to opening a specially crafted website, an attacker could potentially exploit these to cause a denial of service, read uninitialized memory, obtain sensitive information, bypass same-origin restrictions, bypass CSP protections, bypass mixed content blocking, spoof the addressbar, or execute arbitrary code. (CVE-2017-7826, CVE-2017-7827, CVE-2017-7828, CVE-2017-7830, CVE-2017-7831, CVE-2017-7832, CVE-2017-7833, CVE-2017-7834, CVE-2017-7835, CVE-2017-7837, CVE-2017-7838, CVE-2017-7842) It was discovered that javascript: URLs pasted in to the addressbar would be executed instead of being blocked in some circumstances. If a user were tricked in to copying a specially crafted URL in to the addressbar, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2017-7839) It was discovered that exported bookmarks do not strip script elements from user-supplied tags. If a user were tricked in to adding specially crafted tags to bookmarks, exporting them and then opening the resulting HTML file, an attacker could potentially exploit this to conduct cross-site scripting (XSS) attacks. (CVE-2017-7840)

References: https://ubuntu.com/security/notices/USN-3477-1, https://ubuntu.com/security/CVE-2017-7826, https://ubuntu.com/security/CVE-2017-7827, https://ubuntu.com/security/CVE-2017-7828, https://ubuntu.com/security/CVE-2017-7830, https://ubuntu.com/security/CVE-2017-7831, https://ubuntu.com/security/CVE-2017-7832, https://ubuntu.com/security/CVE-2017-7833, https://ubuntu.com/security/CVE-2017-7834, https://ubuntu.com/security/CVE-2017-7835, https://ubuntu.com/security/CVE-2017-7837, https://ubuntu.com/security/CVE-2017-7838, https://ubuntu.com/security/CVE-2017-7839, https://ubuntu.com/security/CVE-2017-7840, https://ubuntu.com/security/CVE-2017-7842