VulnerabilityModified
CVE-2018-20615
An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash.
HIGH 7.5EPSS 4.46%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.46%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An out-of-bounds read issue was discovered in the HTTP/2 protocol decoder in HAProxy 1.8.x and 1.9.x through 1.9.0 which can result in a crash. The processing of the PRIORITY flag in a HEADERS frame requires 5 extra bytes, and while these bytes are skipped, the total frame length was not re-checked to make sure they were present in the frame.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 4.46% probability · 91th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- haproxy/haproxy · opensuse/leap · canonical/ubuntu linux · redhat/openshift container platform · redhat/enterprise linux
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/106645Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0275Third Party Advisory
- https://usn.ubuntu.com/3858-1/Third Party Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg32304.html
- http://lists.opensuse.org/opensuse-security-announce/2019-02/msg00018.htmlMailing List, Third Party Advisory
- http://www.securityfocus.com/bid/106645Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHBA-2019:0327Third Party Advisory
- https://access.redhat.com/errata/RHSA-2019:0275Third Party Advisory
- https://usn.ubuntu.com/3858-1/Third Party Advisory
- https://www.mail-archive.com/haproxy%40formilux.org/msg32304.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.