CVE-2017-5949 Memory corruption in n/a
Remote attackers can cause denial of service or potentially execute code via crafted JavaScript triggering heap-based out-of-bounds write in WebKit.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-5949?
CVE-2017-5949 is a critical memory corruption vulnerability in Apple Safari, published on 3 Apr 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
JavaScriptCore in WebKit, as distributed in Safari Technology Preview Release 22, allows remote attackers to cause a denial of service (heap-based out-of-bounds write and application crash) or possibly have unspecified other impact via crafted JavaScript code that triggers access to red-zone memory locations, related to jit/ThunkGenerators.cpp, llint/LowLevelInterpreter32_64.asm, and llint/LowLevelInterpreter64.asm.
Weakness: CWE-787
Which versions are affected by CVE-2017-5949?
It affects 1 product.
Products include Apple Safari.
How do I fix CVE-2017-5949?
No fix has been published for CVE-2017-5949 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2017-5949 being exploited?
There is no known exploitation of CVE-2017-5949 in the wild and no public exploit code.
Other vulnerabilities in Apple Safari
Sources
Also known as GHSA-4c7j-5rpp-4x8h, UBUNTU-CVE-2017-5949.