VulnerabilityModified
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.
HIGH 8.8EPSS 60.7%
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 60.7%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
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 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 60.73% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-787
- Affected
- haproxy/haproxy · debian/debian linux · redhat/openshift container platform · fedoraproject/fedora · canonical/ubuntu linux · opensuse/leap
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.htmlThird Party Advisory, VDB Entry
- http://www.haproxy.orgVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1819111Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1168023Issue Tracking, Third Party Advisory
- https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88
- https://lists.debian.org/debian-security-announce/2020/msg00052.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/
- 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 Notes, Vendor Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg36876.html
- http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00002.htmlMailing List, Third Party Advisory
- http://packetstormsecurity.com/files/157323/haproxy-hpack-tbl.c-Out-Of-Bounds-Write.htmlThird Party Advisory, VDB Entry
- http://www.haproxy.orgVendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1819111Issue Tracking, Third Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=1168023Issue Tracking, Third Party Advisory
- https://git.haproxy.org/?p=haproxy.git%3Ba=commit%3Bh=5dfc5d5cd0d2128d77253ead3acf03a421ab5b88
- https://lists.debian.org/debian-security-announce/2020/msg00052.htmlMailing List, Third Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/264C7UL3X7L7QE74ZJ557IOUFS3J4QQC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MNW5RZLIX7LOXRLV7WMHX22CI43XSXKW/
- 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 Notes, Vendor Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg36876.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.