When encrypting with a block cipher, if a call to NSC_EncryptUpdate was made with data smaller than the block size, a small out of bounds write could occur. This could have caused heap corruption 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
lists.opensuse.org/opensuse-security-announce/2020-01/msg00006.html
access.redhat.com/errata/RHSA-2020:0243
access.redhat.com/errata/RHSA-2020:0466
bugzilla.mozilla.org/show_bug.cgi?id=1586176
cert-portal.siemens.com/productcert/pdf/ssa-379803.pdf
lists.debian.org/debian-lts-announce/2020/09/msg00029.html
security.gentoo.org/glsa/202003-02
security.gentoo.org/glsa/202003-10
security.gentoo.org/glsa/202003-37
us-cert.cisa.gov/ics/advisories/icsa-21-040-04
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/