Out-of-Bounds Read Vulnerability in HAProxy HTTP/2 Protocol Decoder
CVE-2018-20615

7.5HIGH

Key Information:

Vendor

Haproxy

Status
Haproxy
Vendor
CVE Published:
21 March 2019

What is CVE-2018-20615?

An out-of-bounds read issue was identified in the HTTP/2 protocol decoder of HAProxy versions 1.8.x and 1.9.x through 1.9.0. This vulnerability arises because the processing of the PRIORITY flag in a HEADERS frame necessitates five additional bytes, which are not re-checked to confirm their presence in the frame. If these bytes are skipped, it can lead to an unexpected crash of the system. This issue may expose applications using HAProxy to potential exploits, underscoring the importance of implementing the latest security updates to mitigate risks.

References

http://www.securityfocus.com/bid/106645
vdb-entryx_refsource_BID
https://access.redhat.com/errata/RHSA-2019:0275
vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-announce/2019...
mailing-listx_refsource_MLIST

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.