CVE-2017-0070 Use after free in Browser
Remote attackers can execute arbitrary code via memory corruption in Microsoft scripting engines, potentially gaining full system control.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2017-0070?
CVE-2017-0070 is a high-severity use after free vulnerability in Microsoft Edge, published on 17 Mar 2017. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
A remote code execution vulnerability exists in the way affected Microsoft scripting engines render when handling objects in memory in Microsoft browsers. These vulnerabilities could corrupt memory in such a way that an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged on with administrative user rights, an attacker who successfully exploited the vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. This vulnerability is different from those described in CVE-2017-0010, CVE-2017-0015, CVE-2017-0032, CVE-2017-0035, CVE-2017-0067, CVE-2017-0071, CVE-2017-0094, CVE-2017-0131, CVE-2017-0132, CVE-2017-0133, CVE-2017-0134, CVE-2017-0136, CVE-2017-0137, CVE-2017-0138, CVE-2017-0141, CVE-2017-0150, and CVE-2017-0151.
Weakness: CWE-416
Which versions are affected by CVE-2017-0070?
It affects 1 product.
Products include Microsoft Edge.
How do I fix CVE-2017-0070?
No fix has been published for CVE-2017-0070 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2017-0070 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2017-0070 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in Microsoft Edge
Sources
Also known as GHSA-mxpv-7v22-cqc6.