OSV-2021-159 UNKNOWN READ in htp_connp_RES_FINALIZE
An unknown read vulnerability in libhtp can cause a crash during response finalization, potentially leading to 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-2021-159?
OSV-2021-159 is a memory corruption vulnerability in libhtp, published on 13 Jan 2021. 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=29551
Crash type: UNKNOWN READ
Crash state:
htp_connp_RES_FINALIZE
htp_connp_res_data
fuzz_htp.c
Which versions are affected by OSV-2021-159?
1 open source package ship an affected version, including libhtp.
| Package | Affected | Fixed in |
|---|---|---|
libhtp OSS-Fuzz | All versions | None |
How do I fix OSV-2021-159?
No fix has been published for OSV-2021-159 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-2021-159 being exploited?
There is no known exploitation of OSV-2021-159 in the wild and no public exploit code.