CVE-2017-7784: Use After Free
First published: Tue Aug 08 2017(Updated: )
A use-after-free vulnerability can occur when reading an image observer during frame reconstruction after the observer has been freed. This results in a potentially exploitable crash.
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 | |
| Thunderbird | <52.3 | 52.3 |
| Debian | =8.0 | |
| 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 | <52.3.0 | |
| Firefox | <55.0 | |
| Firefox ESR | <52.3 | |
| Firefox | <55 | 55 |
| Firefox ESR | <52.3 | 52.3 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1376087
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-20/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-18/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-19/
- http://www.securityfocus.com/bid/100202
- http://www.securitytracker.com/id/1039124
- https://access.redhat.com/errata/RHSA-2017:2456
- https://access.redhat.com/errata/RHSA-2017:2534
- https://security.gentoo.org/glsa/201803-14
- https://www.debian.org/security/2017/dsa-3928
- https://www.debian.org/security/2017/dsa-3968
- https://www.mozilla.org/security/advisories/mfsa2017-18/
- https://www.mozilla.org/security/advisories/mfsa2017-19/
- https://www.mozilla.org/security/advisories/mfsa2017-20/
- https://www.mozilla.org/en-US/security/advisories/mfsa2017-19/#CVE-2017-7784
- https://bugzilla.redhat.com/show_bug.cgi?id=1479201
- https://security-tracker.debian.org/tracker/CVE-2017-7784
Peer vulnerabilities
(Found alongside the following vulnerabilities)
- CVE-2017-7800
- CVE-2017-7801
- CVE-2017-7809
- CVE-2017-7784
- CVE-2017-7802
- CVE-2017-7785
- CVE-2017-7786
- CVE-2017-7753
- CVE-2017-7787
- CVE-2017-7807
- CVE-2017-7792
- CVE-2017-7804
- CVE-2017-7791
- CVE-2017-7782
- CVE-2017-7803
- CVE-2017-7779
- CVE-2017-7798
- CVE-2017-7806
- CVE-2017-7808
- CVE-2017-7781
- CVE-2017-7794
- CVE-2017-7799
- CVE-2017-7783
- CVE-2017-7788
- CVE-2017-7789
- CVE-2017-7790
- CVE-2017-7796
- CVE-2017-7797
- CVE-2017-7780
Frequently Asked Questions
What is the severity of CVE-2017-7784?
CVE-2017-7784 is classified as a potentially exploitable vulnerability and could lead to application crashes.
How do I fix CVE-2017-7784?
To fix CVE-2017-7784, update to the latest versions of affected software, including Firefox 118.0.2-1 and various versions of Firefox ESR.
What software is affected by CVE-2017-7784?
CVE-2017-7784 affects Mozilla Firefox, Firefox ESR, and Thunderbird versions prior to their specified updates.
Can CVE-2017-7784 be exploited remotely?
CVE-2017-7784 can potentially be exploited remotely during image processing tasks in the affected applications.
Is CVE-2017-7784 still a risk in supported versions?
No, CVE-2017-7784 is mitigated in supported versions of affected applications after applying the appropriate updates.
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