CVE-2017-6952 Capstone Integer overflow
An integer overflow in Capstone's kernel memory allocator allows attackers to cause a heap-based buffer overflow, leading to denial of service or potential code execution.
- 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
- Available
What is CVE-2017-6952?
CVE-2017-6952 is a high-severity vulnerability in n/a, published on 16 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
Integer overflow in the cs_winkernel_malloc function in winkernel_mm.c in Capstone 3.0.4 and earlier allows attackers to cause a denial of service (heap-based buffer overflow in a kernel driver) or possibly have unspecified other impact via a large value.
Weakness: CWE-190
Which versions are affected by CVE-2017-6952?
3 open source packages ship an affected version, including capstone. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
capstone PyPI | All versions | 3.0.5rc2 |
capstone PyPI | All versions | 3.0.5rc2 |
capstone PyPI | All versions | 3.0.5rc2 |
Products include Capstone-Engine Capstone.
How do I fix CVE-2017-6952?
Upgrade capstone to 3.0.5rc2 or later.
Is CVE-2017-6952 being exploited?
There is no known exploitation of CVE-2017-6952 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2016-7151 Capstone SEGV caused by a read memory access
- CVE-2026-47143 Capstone has a NULL Pointer Dereference with 3DNow! opcodes
- CVE-2025-67873 Capstone doesn't check Skipdata length, leading to cs_insn.bytes heap buffer overflow
- CVE-2025-68114 Capstone doesn't check vsnprintf return in SStream_concat, allows stack buffer underflow and overflow
Sources
Also known as GHSA-3v99-hpv7-9hh9, PYSEC-2017-113.