critical
CVE-2017-7753
Mozilla: Out-of-bounds read with cached style data and pseudo-elements (MFSA 2017-19)
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.
Severity by source
NVD9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Red Hat9.1CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), Oracle (high), Ubuntu (medium).
Description
An out-of-bounds read occurs when applying style rules to pseudo-elements, such as ::first-line, using cached style data. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
Affected packages and fixed versions
| Source | Package | Fixed in |
|---|---|---|
| debian 11 | firefox-esr | 52.3.0esr-1 |
| debian 12 | firefox-esr | 52.3.0esr-1 |
| debian 13 | firefox-esr | 52.3.0esr-1 |
| debian 14 | firefox-esr | 52.3.0esr-1 |
| debian 7 | firefox-esr, icedove | 52.3.0esr-1~deb7u1 and 1 more |
| debian 8 | firefox-esr, icedove | 52.3.0esr-1~deb8u2 and 1 more |
| debian 9 | firefox-esr, icedove | 52.3.0esr-1~deb9u1 and 1 more |
| echo | firefox-esr | 52.3.0esr-1 |
| Oracle Linux 6 | firefox, thunderbird | 52.3.0-3.0.1.el6_9 and 1 more |
| Oracle Linux 7 | firefox, thunderbird | 52.3.0-2.0.1.el7_4 and 1 more |
| ubuntu 14.04 | firefox, thunderbird | 55.0.1+build2-0ubuntu0.14.04.2 and 1 more |
| ubuntu 16.04 | firefox, thunderbird | 55.0.1+build2-0ubuntu0.16.04.2 and 1 more |
Show all 29 entries from 17 sources
| Source | Package | Fixed in |
|---|---|---|
| debian 11 | firefox-esr | 52.3.0esr-1 |
| debian 12 | firefox-esr | 52.3.0esr-1 |
| debian 13 | firefox-esr | 52.3.0esr-1 |
| debian 14 | firefox-esr | 52.3.0esr-1 |
| debian 7 | firefox-esr | 52.3.0esr-1~deb7u1 |
| debian 7 | icedove | 1:52.3.0-4~deb7u1 |
| debian 8 | firefox-esr | 52.3.0esr-1~deb8u2 |
| debian 8 | icedove | 1:52.3.0-4~deb8u2 |
| debian 9 | firefox-esr | 52.3.0esr-1~deb9u1 |
| debian 9 | icedove | 1:52.3.0-4~deb9u1 |
| echo | firefox-esr | 52.3.0esr-1 |
| Oracle Linux 6 | firefox | 52.3.0-3.0.1.el6_9 |
| Oracle Linux 6 | thunderbird | 52.3.0-1.0.1.el6_9 |
| Oracle Linux 7 | firefox | 52.3.0-2.0.1.el7_4 |
| Oracle Linux 7 | thunderbird | 52.3.0-1.0.1.el7_4 |
| ubuntu 14.04 | firefox | 55.0.1+build2-0ubuntu0.14.04.2 |
| ubuntu 14.04 | thunderbird | 1:52.3.0+build1-0ubuntu0.14.04.1 |
| ubuntu 16.04 | firefox | 55.0.1+build2-0ubuntu0.16.04.2 |
| ubuntu 16.04 | thunderbird | 1:52.3.0+build1-0ubuntu0.16.04.1 |
| ubuntu 17.04 | firefox | 55.0.1+build2-0ubuntu0.17.04.2 |
| ubuntu 17.04 | thunderbird | 1:52.3.0+build1-0ubuntu0.17.04.1 |
| ubuntu 17.10 | firefox | 55.0.2+build1-0ubuntu4 |
| ubuntu 17.10 | thunderbird | 1:52.4.0+build1-0ubuntu2 |
| ubuntu 18.04 | firefox | 55.0.2+build1-0ubuntu4 |
| ubuntu 18.04 | thunderbird | 1:52.4.0+build1-0ubuntu2 |
| ubuntu 18.10 | firefox | 55.0.2+build1-0ubuntu4 |
| ubuntu 18.10 | thunderbird | 1:52.4.0+build1-0ubuntu2 |
| ubuntu 19.04 | firefox | 55.0.2+build1-0ubuntu4 |
| ubuntu 19.04 | thunderbird | 1:52.4.0+build1-0ubuntu2 |
References
- http://www.securityfocus.com/bid/100315
- http://www.securitytracker.com/id/1039124
- https://access.redhat.com/errata/RHSA-2017:2456
- https://access.redhat.com/errata/RHSA-2017:2534
- https://access.redhat.com/security/cve/CVE-2017-7753
- https://bugzilla.mozilla.org/show_bug.cgi?id=1353312
- https://linux.oracle.com/cve/CVE-2017-7753.html
- https://linux.oracle.com/errata/ELSA-2017-2534.html
All 19 references
- https://nvd.nist.gov/vuln/detail/CVE-2017-7753
- https://security.gentoo.org/glsa/201803-14
- https://ubuntu.com/security/notices/USN-3391-1
- https://ubuntu.com/security/notices/USN-3416-1
- https://www.cve.org/CVERecord?id=CVE-2017-7753
- https://www.debian.org/security/2017/dsa-3928
- https://www.debian.org/security/2017/dsa-3968
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-19/#CVE-2017-7753
- https://www.mozilla.org/security/advisories/mfsa2017-18/
- https://www.mozilla.org/security/advisories/mfsa2017-19/
- https://www.mozilla.org/security/advisories/mfsa2017-20/