CVE-2017-7800: Use After Free
First published: Tue Aug 08 2017(Updated: )
A use-after-free vulnerability can occur in WebSockets when the object holding the connection is freed before the disconnection operation is finished. This results in an 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 | |
| Mozilla Thunderbird | <52.3 | 52.3 |
| Mozilla Firefox ESR | <52.3 | 52.3 |
| Mozilla Firefox | <55 | 55 |
| Debian Debian Linux | =8.0 | |
| Debian Debian Linux | =9.0 | |
| Red Hat Enterprise Linux | =6.0 | |
| Red Hat Enterprise Linux | =7.0 | |
| redhat enterprise Linux desktop | =6.0 | |
| redhat enterprise Linux desktop | =7.0 | |
| redhat enterprise Linux server | =6.0 | |
| redhat enterprise Linux server | =7.0 | |
| redhat enterprise Linux server aus | =7.3 | |
| redhat enterprise Linux server aus | =7.4 | |
| redhat enterprise Linux server eus | =7.3 | |
| redhat enterprise Linux server eus | =7.4 | |
| redhat enterprise Linux server eus | =7.5 | |
| redhat enterprise Linux workstation | =6.0 | |
| redhat enterprise Linux workstation | =7.0 | |
| Mozilla Firefox | <55.0 | |
| Mozilla Firefox ESR | <52.3.0 | |
| Mozilla Thunderbird | <52.3.0 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1374047
- 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/100196
- 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-2017-7800
- https://bugzilla.redhat.com/show_bug.cgi?id=1479218
- https://security-tracker.debian.org/tracker/CVE-2017-7800
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-2017-7800?
CVE-2017-7800 has a moderate severity level due to the potential for crashes and exploitation.
How do I fix CVE-2017-7800?
To fix CVE-2017-7800, update your affected software to the latest versions provided by Mozilla.
What software is affected by CVE-2017-7800?
CVE-2017-7800 affects multiple versions of Firefox, Firefox ESR, and Thunderbird running on various Linux distributions.
Is CVE-2017-7800 a critical vulnerability?
CVE-2017-7800 is not classified as critical, but it can lead to potential denial of service issues.
What could happen if CVE-2017-7800 is exploited?
Exploiting CVE-2017-7800 could result in crashes of the affected applications, impacting user session stability.
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