Debian Security Bug TrackerDEBIANCVE:CVE-2021-40346CVE-2021-40346
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.031 Low
EPSS
Percentile
90.9%
An integer overflow exists in HAProxy 2.0 through 2.5 in htx_add_header that can be exploited to perform an HTTP request smuggling attack, allowing an attacker to bypass all configured http-request HAProxy ACLs and possibly other ACLs.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Debian | 12 | all | haproxy | < 2.2.16-3 | haproxy_2.2.16-3_all.deb |
| Debian | 11 | all | haproxy | < 2.2.9-2+deb11u2 | haproxy_2.2.9-2+deb11u2_all.deb |
| Debian | 10 | all | haproxy | < 1.8.19-1+deb10u3 | haproxy_1.8.19-1+deb10u3_all.deb |
| Debian | 999 | all | haproxy | < 2.2.16-3 | haproxy_2.2.16-3_all.deb |
| Debian | 13 | all | haproxy | < 2.2.16-3 | haproxy_2.2.16-3_all.deb |
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.031 Low
EPSS
Percentile
90.9%