OSV-2022-141 Heap-use-after-free in nghttp2_hd_deflate_hd_bufs
A heap-use-after-free vulnerability in the nghttp2 library allows attackers to cause denial of service or potentially execute code via crafted HTTP/2 headers.
- 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-2022-141?
OSV-2022-141 is an use after free vulnerability in curl, published on 11 Feb 2022. 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=44517
Crash type: Heap-use-after-free READ 3
Crash state:
nghttp2_hd_deflate_hd_bufs
nghttp2_frame_pack_headers
nghttp2_session_mem_send_internal
Which versions are affected by OSV-2022-141?
1 open source package ship an affected version, including curl.
| Package | Affected | Fixed in |
|---|---|---|
curl OSS-Fuzz | All versions | None |
How do I fix OSV-2022-141?
No fix has been published for OSV-2022-141 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-2022-141 being exploited?
There is no known exploitation of OSV-2022-141 in the wild and no public exploit code.