Vulnerability Details : 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.
Vulnerability category: Memory CorruptionExecute code
Products affected by CVE-2020-11100
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openshift_container_platform:3.11:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:openshift_container_platform:4.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:31:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:30:*:*:*:*:*:*:*
- cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
- cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*
Threat overview for CVE-2020-11100
Top countries where our scanners detected CVE-2020-11100
Top open port discovered on systems with this issue
80
IPs affected by CVE-2020-11100 650
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2020-11100!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2020-11100
2.75%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 90 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-11100
Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
---|---|---|---|---|---|---|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
8.8
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
2.8
|
5.9
|
NIST |
CWE ids for CVE-2020-11100
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-11100
-
https://www.haproxy.org/download/2.1/src/CHANGELOG
Release Notes;Vendor Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=1819111
1819111 – (CVE-2020-11100) CVE-2020-11100 haproxy: malformed HTTP/2 requests can lead to out-of-bounds writesIssue Tracking;Third Party Advisory
-
https://www.debian.org/security/2020/dsa-4649
Debian -- Security Information -- DSA-4649-1 haproxyThird Party Advisory
-
http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.html
haproxy hpack-tbl.c Out-Of-Bounds Write ≈ Packet StormThird Party Advisory;VDB Entry
-
https://usn.ubuntu.com/4321-1/
USN-4321-1: HAProxy vulnerability | Ubuntu security notices | UbuntuThird Party Advisory
-
http://www.haproxy.org
HAProxy - The Reliable, High Performance TCP/HTTP Load BalancerVendor Advisory
-
https://bugzilla.suse.com/show_bug.cgi?id=1168023
Bug 1168023 – VUL-0: CVE-2020-11100: haproxy: H2/HPACK vulnerabilityIssue Tracking;Third Party Advisory
-
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.html
[security-announce] openSUSE-SU-2020:0444-1: important: Security updateMailing List;Third Party Advisory
-
https://lists.debian.org/debian-security-announce/2020/msg00052.html
[SECURITY] [DSA 4649-1] haproxy security updateMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/
[SECURITY] Fedora 30 Update: haproxy-1.8.25-1.fc30 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://git.haproxy.org/?p=haproxy.git;a=commit;h=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88
Repositories - haproxy.git/commitPatch;Vendor Advisory
-
https://security.gentoo.org/glsa/202012-22
HAProxy: Arbitrary code execution (GLSA 202012-22) — Gentoo securityThird Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/
[SECURITY] Fedora 31 Update: haproxy-2.0.14-1.fc31 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://www.mail-archive.com/haproxy@formilux.org/msg36876.html
[ANNOUNCE] haproxy-2.1.4Mailing List;Third Party Advisory
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