This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --===============8015106844126770305== Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="uFTFnxOuBvbCidxW1cDirBV0PSH8qpj4h"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --uFTFnxOuBvbCidxW1cDirBV0PSH8qpj4h Content-Type: multipart/mixed; boundary="qpIXQSNgfTHxCvxUcjWEmEx0rnmHrlE5s"; protected-headers="v1" From: Chris Coulson <chris.coulson@canonical.com> Reply-To: Ubuntu Security <security@ubuntu.com> To: ubuntu-security-announce@lists.ubuntu.com Message-ID: <df29e5b9-c1e0-b13a-8b09-a3927174d130@canonical.com> Subject: [USN-3477-1] Firefox vulnerabilities
--qpIXQSNgfTHxCvxUcjWEmEx0rnmHrlE5s Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable Content-Language: en-US
========================================================================== Ubuntu Security Notice USN-3477-1 November 16, 2017
firefox vulnerabilities ==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10 - Ubuntu 17.04 - Ubuntu 16.04 LTS - Ubuntu 14.04 LTS
Summary:
Firefox could be made to crash or run programs as your login if it opened a malicious website.
Software Description: - firefox: Mozilla Open Source web browser
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)
Update instructions:
The problem can be corrected by updating your system to the following package versions:
Ubuntu 17.10: firefox 57.0+build4-0ubuntu0.17.10.5
Ubuntu 17.04: firefox 57.0+build4-0ubuntu0.17.04.5
Ubuntu 16.04 LTS: firefox 57.0+build4-0ubuntu0.16.04.5
Ubuntu 14.04 LTS: firefox 57.0+build4-0ubuntu0.14.04.4
After a standard system update you need to restart Firefox to make all the necessary changes.
References: https://www.ubuntu.com/usn/usn-3477-1 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-2017-7839, CVE-2017-7840, CVE-2017-7842
Package Information: https://launchpad.net/ubuntu/+source/firefox/57.0+build4-0ubuntu0.17.10.5 https://launchpad.net/ubuntu/+source/firefox/57.0+build4-0ubuntu0.17.04.5 https://launchpad.net/ubuntu/+source/firefox/57.0+build4-0ubuntu0.16.04.5 https://launchpad.net/ubuntu/+source/firefox/57.0+build4-0ubuntu0.14.04.4
--qpIXQSNgfTHxCvxUcjWEmEx0rnmHrlE5s--
--uFTFnxOuBvbCidxW1cDirBV0PSH8qpj4h Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
iQEcBAEBCAAGBQJaDazPAAoJEGEfvezVlG4PbtsH+gM8ETIXDlSWI6DmKorbu7fP zR0AtDT5BKoe9Ek0whWmVRqfwIfdAItbg0eWsBiRj2P74x1xYTpn9JbQp7kvtDE0 2Mz5ePpOmgsDJqON/LyCzBmvHYzodTn1RI/hYXf1smCsUq8rDFUM+F/SqYoMzDPZ i7tR3zIc1gXUC632EbqcB9rlfq1jR5BbHspkhpOaKkyxD1D5qdudHxxXydehUbB7 3uB9h6RkchNPQgfL39/M1DoX58m27p3w+jWxZD1WZrmoID5k2wrkDOUkqWEv4JTK u79QDQNIduvMXMal7K9FuIuO8lH+lzjuU6AmLxuR2ZR4roPTn1edmw2Ij8Xdc7o= =7EG1 -----END PGP SIGNATURE-----
--uFTFnxOuBvbCidxW1cDirBV0PSH8qpj4h--
--===============8015106844126770305== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Content-Disposition: inline
LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5 LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj dXJpdHktYW5ub3VuY2UK
--===============8015106844126770305==--
|