PRIOn knowledge basePRION:CVE-2020-11100Remote code execution
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
High
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
0.028 Low
EPSS
Percentile
90.4%
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.
| CPE | Name | Operator | Version |
|---|---|---|---|
| ubuntu_linux | eq | 18.04 | |
| ubuntu_linux | eq | 19.10 | |
| debian_linux | eq | 10.0 | |
| fedora | eq | 30 | |
| fedora | eq | 31 | |
| haproxy | ge | 1.8.0 | |
| haproxy | lt | 2.1.4 | |
| leap | eq | 15.1 | |
| openshift_container_platform | eq | 3.11 | |
| openshift_container_platform | eq | 4.0 |
References
lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.html
packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.html
www.haproxy.org
bugzilla.redhat.com/show_bug.cgi?id=1819111
bugzilla.suse.com/show_bug.cgi?id=1168023
git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88
lists.debian.org/debian-security-announce/2020/msg00052.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/
security.gentoo.org/glsa/202012-22
usn.ubuntu.com/4321-1/
www.debian.org/security/2020/dsa-4649
www.haproxy.org/download/2.1/src/CHANGELOG
www.mail-archive.com/haproxy%40formilux.org/msg36876.html
Related
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7 High
AI Score
Confidence
High
6.5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:S/C:P/I:P/A:P
0.028 Low
EPSS
Percentile
90.4%