CVE-2020-11100
high-risk
Published 2020-04-02
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.
Do I need to act?
!
74.8% chance of exploitation in next 30 days
EPSS score — higher than 25% of all CVEs
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10
High
NETWORK
/ LOW complexity
Affected Products (9)
References (28)
Third Party Advisory
http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Wr...
Vendor Advisory
http://www.haproxy.org
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1819111
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1168023
Third Party Advisory
https://security.gentoo.org/glsa/202012-22
Third Party Advisory
https://usn.ubuntu.com/4321-1/
Third Party Advisory
https://www.debian.org/security/2020/dsa-4649
Release Notes
https://www.haproxy.org/download/2.1/src/CHANGELOG
Third Party Advisory
http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Wr...
Vendor Advisory
http://www.haproxy.org
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1819111
Issue Tracking
https://bugzilla.suse.com/show_bug.cgi?id=1168023
and 8 more references
64
/ 100
high-risk
Severity
30/34 · Critical
Exploitability
19/34 · Moderate
Exposure
15/34 · Moderate