Under certain conditions, when retrieving a document from a DocShell in the antitracking code, a race condition could cause a use-after-free condition and a potentially exploitable crash. This vulnerability affects Thunderbird < 68.3, Firefox ESR < 68.3, and Firefox < 71.
[
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"status": "affected",
"version": "before 68.3"
}
]
},
{
"product": "Firefox ESR",
"vendor": "Mozilla",
"versions": [
{
"status": "affected",
"version": "before 68.3"
}
]
},
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"status": "affected",
"version": "before 71"
}
]
}
]
lists.opensuse.org/opensuse-security-announce/2020-01/msg00000.html
lists.opensuse.org/opensuse-security-announce/2020-01/msg00001.html
access.redhat.com/errata/RHSA-2020:0292
access.redhat.com/errata/RHSA-2020:0295
bugzilla.mozilla.org/show_bug.cgi?id=1591334
security.gentoo.org/glsa/202003-02
security.gentoo.org/glsa/202003-10
usn.ubuntu.com/4241-1/
usn.ubuntu.com/4335-1/
www.mozilla.org/security/advisories/mfsa2019-36/
www.mozilla.org/security/advisories/mfsa2019-37/
www.mozilla.org/security/advisories/mfsa2019-38/