OSV-2020-19 Heap-use-after-free in htp_connp_is_line_terminator
A heap-use-after-free vulnerability in the HTTP parsing library allows attackers to cause denial of service or potentially execute code via crafted requests.
- 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-2020-19?
OSV-2020-19 is an use after free vulnerability in suricata, published on 24 Jun 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=21712
Crash type: Heap-use-after-free READ 1
Crash state:
htp_connp_is_line_terminator
htp_connp_REQ_HEADERS
htp_connp_req_data
Which versions are affected by OSV-2020-19?
1 open source package ship an affected version, including suricata.
| Package | Affected | Fixed in |
|---|---|---|
suricata OSS-Fuzz | All versions | None |
How do I fix OSV-2020-19?
No fix has been published for OSV-2020-19 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 OSV-2020-19 being exploited?
There is no known exploitation of OSV-2020-19 in the wild and no public exploit code.