OSV-2020-2000 Heap-buffer-overflow in sctp_process_init
A heap buffer overflow in the SCTP protocol library allows remote attackers to execute arbitrary code or cause a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is OSV-2020-2000?
OSV-2020-2000 is a memory corruption vulnerability in usrsctp, published on 9 Oct 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=26197
Crash type: Heap-buffer-overflow WRITE 1
Crash state:
sctp_process_init
sctp_process_cookie_existing
sctp_handle_cookie_echo
Which versions are affected by OSV-2020-2000?
1 open source package ship an affected version, including usrsctp.
| Package | Affected | Fixed in |
|---|---|---|
usrsctp OSS-Fuzz | All versions | None |
How do I fix OSV-2020-2000?
No fix has been published for OSV-2020-2000 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 OSV-2020-2000 being exploited?
There is no known exploitation of OSV-2020-2000 in the wild and no public exploit code.