haproxy: malformed HTTP/2 requests can lead to out-of-bounds writes (CVE-2020-11100)
In hpack_dht_insert in hpack-tbl.c in the HPACK decoder in HAProxy 1.8 through 2.x before 2.1.4, a remote attacker can write arbitrary bytes around a certain location on the heap via a crafted HTTP/2 request, possibly causing remote code execution.
References:
- https://nvd.nist.gov/vuln/detail/CVE-2020-11100
- https://security-tracker.debian.org/tracker/CVE-2020-11100
Patch:
https://git.haproxy.org/?p=haproxy-2.1.git;a=patch;h=f17f86304f187b0f10ca6a8d46346afd9851a543