| Name | CVE-2021-40346 |
| Description | 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub advisories/code/issues, web search, more) |
| References | DSA-4968-1 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| haproxy (PTS) | buster | 1.8.19-1+deb10u3 | fixed |
| buster (security) | 1.8.19-1+deb10u4 | fixed | |
| bullseye | 2.2.9-2+deb11u3 | fixed | |
| bullseye (security) | 2.2.9-2+deb11u4 | fixed | |
| bookworm | 2.6.9-1 | fixed | |
| sid | 2.6.11-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| haproxy | source | stretch | (not affected) | |||
| haproxy | source | buster | (not affected) | |||
| haproxy | source | bullseye | 2.2.9-2+deb11u2 | DSA-4968-1 | ||
| haproxy | source | (unstable) | 2.2.16-3 |
[buster] - haproxy <not-affected> (Vulnerable code not present)
[stretch] - haproxy <not-affected> (Vulnerable code not present)
https://www.mail-archive.com/haproxy@formilux.org/msg41114.html
https://git.haproxy.org/?p=haproxy.git;a=commit;h=3b69886f7dcc3cfb3d166309018e6cfec9ce2c95