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.
02 Description
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.
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.51% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 43.8% of scored records. A rank, not a probability.
- NVD base score
- 5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- NVD analysis status
- Deferred. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2024-10-14 00:00Z2 YR AGO
- Last updated
- 2024-10-29 15:16Z2 YR AGO
- Reserved
- 2024-10-14
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 5.3)
- CNA CVSS vector
- CVSS:3.1/AC:L/AV:N/A:N/C:N/I:L/PR:N/S:U/UI:N
- Weaknesses
- Data version
- 5.1
- Document digest
- 83d1e4520c27e5ec7553533237e4c74b4a69536e068ebb87af364c8bb096fe65
05 Affected products
06 References
- www.haproxy.orghttps://www.haproxy.org/download/3.1/src/CHANGELOG
- github.comhttps://github.com/haproxy/haproxy/commit/f627b9272bd8ffca6f2f898bfafc6bf0b84b7d46
- www.mail-archive.comhttps://www.mail-archive.com/haproxy%40formilux.org/msg45291.html
- www.mail-archive.comhttps://www.mail-archive.com/haproxy%40formilux.org/msg45314.html
- www.mail-archive.comhttps://www.mail-archive.com/haproxy%40formilux.org/msg45315.html
- www.haproxy.orghttps://www.haproxy.org/download/3.0/src/CHANGELOG
- www.haproxy.orghttps://www.haproxy.org/download/2.9/src/CHANGELOG
07 Fixed in
Debian 12
- haproxy No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- haproxy Fixed in 2.9.11-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- haproxy Fixed in 2.9.11-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.