Alpine Linux Development TeamALPINE:CVE-2020-11080CVE-2020-11080
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8 High
AI Score
Confidence
High
0.012 Low
EPSS
Percentile
85.5%
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 nghttp2_on_frame_recv_callback callback, and if received frame is SETTINGS frame and the number of settings entries are large (e.g., > 32), then drop the connection.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Alpine | edge-community | noarch | nodejs-current | < 14.4.0-r0 | UNKNOWN |
| Alpine | edge-main | noarch | nghttp2 | < 1.41.0-r0 | UNKNOWN |
| Alpine | edge-main | noarch | nodejs | < 12.18.0-r0 | UNKNOWN |
| Alpine | 3.10-main | noarch | nghttp2 | < 1.39.2-r1 | UNKNOWN |
| Alpine | 3.11-main | noarch | nghttp2 | < 1.40.0-r1 | UNKNOWN |
| Alpine | 3.11-main | noarch | nodejs | < 12.20.1-r0 | UNKNOWN |
| Alpine | 3.12-community | noarch | nodejs-current | < 14.4.0-r0 | UNKNOWN |
| Alpine | 3.12-main | noarch | nghttp2 | < 1.41.0-r0 | UNKNOWN |
| Alpine | 3.12-main | noarch | nodejs | < 12.18.3-r0 | UNKNOWN |
| Alpine | 3.13-community | noarch | nodejs-current | < 14.4.0-r0 | UNKNOWN |
Related
5 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.8 High
AI Score
Confidence
High
0.012 Low
EPSS
Percentile
85.5%