CVE-2024-49214

QUIC in HAProxy 3.1.x before 3.1-dev7, 3.0.x before 3.0.5, and 2.9.x before 2.9.11 allows opening a 0-RTT session with a spoofed IP address. This can bypass the IP allow/block list functionality.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
haproxy	24.10 oracular	Not affected
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected

Notes

mdeslaur

Per the CVE description, this affects 2.9.x+, per the commit description, this affects 2.6+. As of 2024-10-29, there is no backport to 2.8.x available. The fix consists of providing a token to the client each time it successfully managed to connect to haproxy. The token code is only enabled if HAVE_SSL_0RTT_QUIC is set, which is only set when aws-lc and perhaps boringssl is being used as the ssl backend. In Ubuntu, packages are built with OpenSSL, so the QUIC support doesn't handle 0RTT and hence packages are not vulnerable.

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
haproxy	Upstream: f627b92 Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=8f0d380f3905e7a5814e9ffed29bc83c66383864 Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=fa00c0a1b692f4bfbb0dd1360d35528e554607d8 Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=d60edbde4834ce3db567053ab9b8973dc62dbe2f Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=78f36a6ee40ff00ec1519ad1a5aec73c6371c51b Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=0282a82f79ceb9f15515edf49542e7199eede408 Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=cf4b5e1001880bcece3c4d12b5aa422d378dcf1d Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=ab5a390451239282d8a3fd2c45f56162b92a3bd3 Upstream: https://git.haproxy.org/?p=haproxy-2.9.git;a=commit;h=fe5685af820ae62fe5b0d80b5ed7a2ffc41a036f

Package

Patch details

haproxy

Severity score breakdown

Parameter	Value
Base score	5.3 · Medium
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	Low
Availability impact	None
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVE-2024-49214

Cvss 3 Severity Score

Status

Notes

mdeslaur

Patch details

Severity score breakdown

References

Other references