Vulnerability Description
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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haproxy | Haproxy | >= 1.8.0, < 2.1.4 |
| Debian | Debian Linux | 10.0 |
| Redhat | Openshift Container Platform | 3.11 |
| Fedoraproject | Fedora | 30 |
| Canonical | Ubuntu Linux | 18.04 |
| Opensuse | Leap | 15.1 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.htmlMailing ListThird Party Advisory
- http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-WrThird Party AdvisoryVDB Entry
- http://www.haproxy.orgVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1819111Issue TrackingThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1168023Issue TrackingThird Party Advisory
- https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3a
- https://lists.debian.org/debian-security-announce/2020/msg00052.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://security.gentoo.org/glsa/202012-22Third Party Advisory
- https://usn.ubuntu.com/4321-1/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4649Third Party Advisory
- https://www.haproxy.org/download/2.1/src/CHANGELOGRelease NotesVendor Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg36876.html
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-11100?
CVE-2020-11100 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 ...
How severe is CVE-2020-11100?
CVE-2020-11100 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-11100?
Check the references section above for vendor advisories and patch information. Affected products include: Haproxy Haproxy, Debian Debian Linux, Redhat Openshift Container Platform, Fedoraproject Fedora, Canonical Ubuntu Linux.