CVE-2016-6870 Memory corruption in n/a

What is CVE-2016-6870?

CVE-2016-6870 is a critical memory corruption vulnerability in n/a, published on 17 Feb 2017. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Out-of-bounds write in the (1) mb_detect_encoding, (2) mb_send_mail, and (3) mb_detect_order functions in Facebook HHVM before 3.15.0 allows attackers to have unspecified impact via unknown vectors.

Weakness: CWE-787

Which versions are affected by CVE-2016-6870?

It affects 1 product.

Products include Facebook Hhvm.

How do I fix CVE-2016-6870?

No fix has been published for CVE-2016-6870 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-2016-6870 being exploited?

There is no known exploitation of CVE-2016-6870 in the wild and no public exploit code.

Other vulnerabilities in n/a

• CVE-2022-36937 HHVM 4.172.0 and all prior versions use TLS 1.0 for secure connections when handling tls:// URLs in the stream extension. Critical 9.8
• CVE-2020-1900 Use after free in HHVM Critical 9.8
• CVE-2020-1916 Integer overflow in HHVM Critical 9.8
• CVE-2020-1917 Memory corruption in HHVM Critical 9.8
• CVE-2021-24025 Integer overflow in HHVM Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-392p-w329-wxhf, UBUNTU-CVE-2016-6870.