A mechanism to bypass file system access protections in the sandbox to use the file picker to access different files than those selected in the file picker through the use of relative paths. This allows for read only access to the local file system. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.
[
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "52.1",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox ESR",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "52.1",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThan": "53",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
]
www.securityfocus.com/bid/97940
www.securitytracker.com/id/1038320
access.redhat.com/errata/RHSA-2017:1106
access.redhat.com/errata/RHSA-2017:1201
bugzilla.mozilla.org/show_bug.cgi?id=1349276
www.mozilla.org/security/advisories/mfsa2017-10/
www.mozilla.org/security/advisories/mfsa2017-12/
www.mozilla.org/security/advisories/mfsa2017-13/