CVE-2017-5439: Use After Free
A use-after-free vulnerability during XSLT processing due to poor handling of template parameters. This results in a potentially exploitable crash.
Affected Software
Event History
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2017-5433
- CVE-2017-5435
- CVE-2017-5436
- CVE-2017-5461
- CVE-2017-5459
- CVE-2017-5466
- CVE-2017-5434
- CVE-2017-5432
- CVE-2017-5460
- CVE-2017-5438
- CVE-2017-5439
- CVE-2017-5440
- CVE-2017-5441
- CVE-2017-5442
- CVE-2017-5464
- CVE-2017-5443
- CVE-2017-5444
- CVE-2017-5446
- CVE-2017-5447
- CVE-2017-5465
- CVE-2016-10196
- CVE-2017-5454
- CVE-2017-5469
- CVE-2017-5445
- CVE-2017-5449
- CVE-2017-5451
- CVE-2017-5462
- CVE-2017-5467
- CVE-2017-5430
- CVE-2017-5429
- CVE-2017-5448
- CVE-2017-5455
- CVE-2017-5456
- CVE-2017-5450
- CVE-2017-5463
- CVE-2017-5452
- CVE-2017-5453
- CVE-2017-5458
- CVE-2017-5468
Frequently Asked Questions
What is the severity of CVE-2017-5439?
CVE-2017-5439 is classified as a critical vulnerability due to the potential for exploitation leading to crashes in affected software.
How do I fix CVE-2017-5439?
To resolve CVE-2017-5439, users should update affected software such as Mozilla Thunderbird or Firefox to the latest patched versions.
What software is affected by CVE-2017-5439?
CVE-2017-5439 affects various versions of Mozilla Thunderbird and Firefox, specifically those prior to version 52.1 for Thunderbird and Firefox ESR.
What exploitation can occur due to CVE-2017-5439?
Exploitation of CVE-2017-5439 can lead to a use-after-free vulnerability that may crash applications or potentially execute arbitrary code.
Is there a known workaround for CVE-2017-5439?
There are no effective workarounds for CVE-2017-5439; the only solution is upgrading to the fixed software versions.