CVE-2020-11080
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2020-11080
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-11080.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2020-11080
- Aliases
- Downstream
- Related
- Published
- 2020-06-03T23:15:11Z
- Modified
- 2025-10-22T19:05:01.918506Z
- Severity
-
- 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes (2400 individual settings entries) over and over again. The attack causes the CPU to spike at 100%. nghttp2 v1.41.0 fixes this vulnerability. There is a workaround to this vulnerability. Implement nghttp2onframerecvcallback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
- References
-
- http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00024.html
- https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090
- https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394
- https://github.com/nghttp2/nghttp2/security/advisories/GHSA-q5wr-xfw9-q7xr
- https://lists.debian.org/debian-lts-announce/2021/10/msg00011.html
- https://www.debian.org/security/2020/dsa-4696
- https://www.oracle.com//security-alerts/cpujul2021.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.oracle.com/security-alerts/cpujan2021.html
- https://www.oracle.com/security-alerts/cpujul2020.html
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://lists.debian.org/debian-lts-announce/2023/10/msg00023.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/4OOYAMJVLLCLXDTHW3V5UXNULZBBK4O6/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AAC2AA36OTRHKSVM5OV7TTVB3CZIGEFL/
Affected packages
Git / github.com/nghttp2/nghttp2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/nghttp2/nghttp2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixedFixed
Affected versions
v0.*
v0.1.0
v0.2.0
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.5.0
v0.5.1
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.6.6
v0.6.7
v0.7.0
v0.7.1
v0.7.10
v0.7.11
v0.7.12
v0.7.13
v0.7.14
v0.7.15
v0.7.2
v0.7.3
v0.7.4
v0.7.5
v0.7.6
v0.7.7
v0.7.8
v0.7.9
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.1.0
v1.1.1
v1.1.2
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.17.0
v1.18.0
v1.19.0
v1.2.0
v1.2.1
v1.20.0
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.36.0
v1.37.0
v1.38.0
v1.39.0
v1.4.0
v1.40.0
v1.5.0
v1.6.0
v1.7.0
v1.8.0
v1.9.0
v1.9.1
Database specific
vanir_signatures
[
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"function": "main",
"file": "tests/main.c"
},
"digest": {
"function_hash": "77346755642097303584396383619358398552",
"length": 18563.0
},
"deprecated": false,
"id": "CVE-2020-11080-043c15f6",
"signature_type": "Function",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "tests/nghttp2_session_test.c"
},
"digest": {
"line_hashes": [
"130478378985285426395828020745352499798",
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],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-14985976",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "lib/nghttp2_session.h"
},
"digest": {
"line_hashes": [
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],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-29794fd0",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "tests/nghttp2_session_test.h"
},
"digest": {
"line_hashes": [
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"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-4af6c055",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"function": "nghttp2_session_mem_recv",
"file": "lib/nghttp2_session.c"
},
"digest": {
"function_hash": "76320109155165413425003197983052626995",
"length": 25684.0
},
"deprecated": false,
"id": "CVE-2020-11080-5cb6f3ce",
"signature_type": "Function",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "lib/nghttp2_session.c"
},
"digest": {
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"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-73357273",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "lib/nghttp2_option.h"
},
"digest": {
"line_hashes": [
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"239135157918357008258296874879627556704",
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],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-8621d90d",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"function": "nghttp2_strerror",
"file": "lib/nghttp2_helper.c"
},
"digest": {
"function_hash": "161237338488688124648574588901191514607",
"length": 3119.0
},
"deprecated": false,
"id": "CVE-2020-11080-91463383",
"signature_type": "Function",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"function": "session_new",
"file": "lib/nghttp2_session.c"
},
"digest": {
"function_hash": "263822875862045880231887339213735516174",
"length": 5015.0
},
"deprecated": false,
"id": "CVE-2020-11080-9256b42a",
"signature_type": "Function",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "lib/includes/nghttp2/nghttp2.h"
},
"digest": {
"line_hashes": [
"299600677355295622260323329753137725168",
"207336653490817637956563444167084485017",
"173962859204859183510964537905480471226",
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],
"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-93a5c7ca",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "tests/main.c"
},
"digest": {
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"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-98628c0b",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394",
"target": {
"file": "lib/nghttp2_session.c"
},
"digest": {
"line_hashes": [
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"192311053182551829065672374186794059354",
"196600914829518509840604020846440765447"
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"threshold": 0.9
},
"deprecated": false,
"id": "CVE-2020-11080-9b133b71",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/f8da73bd042f810f34d19f9eae02b46d870af394",
"target": {
"function": "nghttp2_session_mem_recv",
"file": "lib/nghttp2_session.c"
},
"digest": {
"function_hash": "272294011727504450056056312260246035417",
"length": 25898.0
},
"deprecated": false,
"id": "CVE-2020-11080-abc2509e",
"signature_type": "Function",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"file": "lib/nghttp2_helper.c"
},
"digest": {
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"deprecated": false,
"id": "CVE-2020-11080-c054b6e7",
"signature_type": "Line",
"signature_version": "v1"
},
{
"source": "https://github.com/nghttp2/nghttp2/commit/336a98feb0d56b9ac54e12736b18785c27f75090",
"target": {
"function": "nghttp2_session_upgrade_internal",
"file": "lib/nghttp2_session.c"
},
"digest": {
"function_hash": "232072567350380857623571495123190065086",
"length": 1322.0
},
"deprecated": false,
"id": "CVE-2020-11080-c7806524",
"signature_type": "Function",
"signature_version": "v1"
}
]
Git / github.com/nghttp2/nghttp2
Git / github.com/nghttp2/nghttp2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/tatsuhiro-t/nghttp2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
v0.*
v0.1.0
v0.2.0
v0.3.0
v0.3.1
v0.4.0
v0.4.1
v0.5.0
v0.5.1
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.6.5
v0.6.6
v0.6.7
v0.7.0
v0.7.1
v0.7.10
v0.7.11
v0.7.12
v0.7.13
v0.7.14
v0.7.15
v0.7.2
v0.7.3
v0.7.4
v0.7.5
v0.7.6
v0.7.7
v0.7.8
v0.7.9
v1.*
v1.0.0
v1.0.1
v1.0.2
v1.0.3
v1.0.4
v1.0.5
v1.1.0
v1.1.1
v1.1.2
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.17.0
v1.18.0
v1.19.0
v1.2.0
v1.2.1
v1.20.0
v1.21.0
v1.22.0
v1.23.0
v1.24.0
v1.25.0
v1.26.0
v1.27.0
v1.28.0
v1.29.0
v1.3.0
v1.3.1
v1.3.2
v1.3.3
v1.3.4
v1.30.0
v1.31.0
v1.32.0
v1.33.0
v1.34.0
v1.35.0
v1.36.0
v1.37.0
v1.38.0
v1.39.0
v1.4.0
v1.40.0
v1.5.0
v1.6.0
v1.7.0
v1.8.0
v1.9.0
v1.9.1