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Ubuntu: USN-3477-2: Firefox regression

Severity CVSS Published Added Modified
4 (AV:L/AC:M/Au:N/C:P/I:P/A:P) November 26, 2017 November 27, 2017 November 27, 2017

Description

USN-3477-1 fixed vulnerabilities in Firefox. The update caused search suggestions to not be displayed when performing Google searches from the search bar. This update fixes the problem.

We apologize for the inconvenience.

Original advisory 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)

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References

Solution

ubuntu-upgrade-firefox