CVE-2017-5402: Use After Free
First published: Tue Mar 07 2017(Updated: )
A use-after-free can occur when events are fired for a "FontFace" object after the object has been already been destroyed while working with fonts. This results in a potentially exploitable crash. This vulnerability affects Firefox < 52, Firefox ESR < 45.8, Thunderbird < 52, and Thunderbird < 45.8.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| debian/firefox | 118.0.2-1 | |
| debian/firefox-esr | 91.12.0esr-1~deb10u1 115.3.1esr-1~deb10u1 102.15.0esr-1~deb11u1 115.3.1esr-1~deb11u1 102.15.1esr-1~deb12u1 115.3.0esr-1~deb12u1 115.3.0esr-1 115.4.0esr-1 | |
| Thunderbird | <45.8 | 45.8 |
| Thunderbird | <52 | 52 |
| Debian | =9.0 | |
| Red Hat Enterprise Linux | =5.0 | |
| Red Hat Enterprise Linux | =6.0 | |
| Red Hat Enterprise Linux | =7.0 | |
| Red Hat Enterprise Linux Desktop | =5.0 | |
| Red Hat Enterprise Linux Desktop | =6.0 | |
| Red Hat Enterprise Linux Desktop | =7.0 | |
| Red Hat Enterprise Linux Server | =5.0 | |
| Red Hat Enterprise Linux Server | =6.0 | |
| Red Hat Enterprise Linux Server | =7.0 | |
| Red Hat Enterprise Linux Server | =7.3 | |
| Red Hat Enterprise Linux Server | =7.4 | |
| Red Hat Enterprise Linux Server | =7.3 | |
| Red Hat Enterprise Linux Server | =7.4 | |
| Red Hat Enterprise Linux Server | =7.5 | |
| Red Hat Enterprise Linux Workstation | =5.0 | |
| Red Hat Enterprise Linux Workstation | =6.0 | |
| Red Hat Enterprise Linux Workstation | =7.0 | |
| Thunderbird | <45.8.0 | |
| Firefox | <52.0 | |
| Firefox ESR | <45.8.0 | |
| Firefox | <52 | 52 |
| Firefox ESR | <45.8 | 45.8 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1334876
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-07/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-05/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-06/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-09/
- http://rhn.redhat.com/errata/RHSA-2017-0459.html
- http://rhn.redhat.com/errata/RHSA-2017-0461.html
- http://rhn.redhat.com/errata/RHSA-2017-0498.html
- http://www.securityfocus.com/bid/96664
- http://www.securitytracker.com/id/1037966
- https://security.gentoo.org/glsa/201705-06
- https://security.gentoo.org/glsa/201705-07
- https://www.debian.org/security/2017/dsa-3805
- https://www.debian.org/security/2017/dsa-3832
- https://www.mozilla.org/security/advisories/mfsa2017-05/
- https://www.mozilla.org/security/advisories/mfsa2017-06/
- https://www.mozilla.org/security/advisories/mfsa2017-07/
- https://www.mozilla.org/security/advisories/mfsa2017-09/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-05/#CVE-2017-5402
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-06/#CVE-2017-5402
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-07/#CVE-2017-5402
- https://security-tracker.debian.org/tracker/CVE-2017-5402
Parent vulnerabilities
(Appears in the following advisories)
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2017-5400
- CVE-2017-5401
- CVE-2017-5402
- CVE-2017-5404
- CVE-2017-5407
- CVE-2017-5410
- CVE-2017-5408
- CVE-2017-5405
- CVE-2017-5398
- CVE-2017-5403
- CVE-2017-5406
- CVE-2017-5411
- CVE-2017-5412
- CVE-2017-5413
- CVE-2017-5414
- CVE-2017-5416
- CVE-2017-5425
- CVE-2017-5426
- CVE-2017-5418
- CVE-2017-5419
- CVE-2017-5421
- CVE-2017-5422
- CVE-2017-5399
- CVE-2017-5409
- CVE-2017-5415
- CVE-2017-5417
- CVE-2017-5427
- CVE-2017-5420
Frequently Asked Questions
What is the severity of CVE-2017-5402?
CVE-2017-5402 is classified as a potentially exploitable vulnerability, which could lead to application crashes.
How do I fix CVE-2017-5402?
To fix CVE-2017-5402, update affected products like Firefox to version 52 or later, and Thunderbird to version 45.8 or later.
Which software is affected by CVE-2017-5402?
CVE-2017-5402 affects Firefox versions prior to 52, Thunderbird versions prior to 52, and Firefox ESR versions prior to 45.8.
Can CVE-2017-5402 be exploited remotely?
While CVE-2017-5402 primarily leads to crashes, exploitation could potentially occur if an attacker can trigger a series of events related to a FontFace object.
Is there a workaround for CVE-2017-5402?
There are no known workarounds for CVE-2017-5402, so updating to the latest versions is strongly recommended.
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