Alpine Linux Development TeamALPINE:CVE-2023-45802CVE-2023-45802
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
8.2 High
AI Score
Confidence
High
0.732 High
EPSS
Percentile
98.1%
When a HTTP/2 stream was reset (RST frame) by a client, there was a time window were the request’s memory resources were not reclaimed immediately. Instead, de-allocation was deferred to connection close. A client could send new requests and resets, keeping the connection busy and open and causing the memory footprint to keep on growing. On connection close, all resources were reclaimed, but the process might run out of memory before that.
This was found by the reporter during testing of CVE-2023-44487 (HTTP/2 Rapid Reset Exploit) with their own test client. During “normal” HTTP/2 use, the probability to hit this bug is very low. The kept memory would not become noticeable before the connection closes or times out.
Users are recommended to upgrade to version 2.4.58, which fixes the issue.
| OS | Version | Architecture | Package | Version | Filename |
|---|---|---|---|---|---|
| Alpine | edge-main | noarch | apache2 | < 2.4.58-r0 | UNKNOWN |
| Alpine | 3.15-main | noarch | apache2 | < 2.4.58-r0 | UNKNOWN |
| Alpine | 3.16-main | noarch | apache2 | < 2.4.58-r0 | UNKNOWN |
| Alpine | 3.17-main | noarch | apache2 | < 2.4.58-r0 | UNKNOWN |
| Alpine | 3.18-main | noarch | apache2 | < 2.4.58-r0 | UNKNOWN |
| Alpine | 3.19-main | noarch | apache2 | < 2.4.58-r0 | UNKNOWN |
| Alpine | 3.20-main | noarch | apache2 | < 2.4.58-r0 | UNKNOWN |
Related
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
8.2 High
AI Score
Confidence
High
0.732 High
EPSS
Percentile
98.1%