Suricata's mishandling of data on HTTP2 stream 0 can lead to resource starvation
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| OISF | suricata | affected |
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Configuration 1 [-]
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No data.
| Vendor | Product | Versions |
|---|---|---|
| Oisf | Suricata | — |
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2025-22378 | Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions 7.0.10 and below and 8.0.0-beta1 through 8.0.0-rc1, mishandling of data on HTTP2 stream 0 can lead to uncontrolled memory usage, leading to loss of visibility. Workarounds include disabling the HTTP/2 parser, and using a signature like drop http2 any any -> any any (frame:http2.hdr; byte_test:1,=,0,3; byte_test:4,=,0,5; sid: 1;) where the first byte test tests the HTTP2 frame type DATA and the second tests the stream id 0. This is fixed in versions 7.0.11 and 8.0.0. |
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.537% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:2.3:a:oisf:suricata:*:*:*:*:*:*:*:* cpe:2.3:a:oisf:suricata:8.0.0:beta1:*:*:*:*:*:* cpe:2.3:a:oisf:suricata:8.0.0:rc1:*:*:*:*:*:* |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Oisf
Oisf suricata |
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| Vendors & Products |
Oisf
Oisf suricata |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions 7.0.10 and below and 8.0.0-beta1 through 8.0.0-rc1, mishandling of data on HTTP2 stream 0 can lead to uncontrolled memory usage, leading to loss of visibility. Workarounds include disabling the HTTP/2 parser, and using a signature like drop http2 any any -> any any (frame:http2.hdr; byte_test:1,=,0,3; byte_test:4,=,0,5; sid: 1;) where the first byte test tests the HTTP2 frame type DATA and the second tests the stream id 0. This is fixed in versions 7.0.11 and 8.0.0. | |
| Title | Suricata's mishandling of data on HTTP2 stream 0 can lead to resource starvation | |
| Weaknesses | CWE-400 CWE-770 |
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| References |
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| Metrics |
cvssV3_1
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