CVE-2019-10081
Published: 15 August 2019
HTTP/2 (2.4.20 through 2.4.39) very early pushes, for example configured with "H2PushResource", could lead to an overwrite of memory in the pushing request's pool, leading to crashes. The memory copied is that of the configured push link header values, not data supplied by the client.
Notes
Author | Note |
---|---|
sbeattie | apache 2.4.20 and newer apache 2.4.18 does not build mod_http2. |
Mitigation
Unpatched servers can disable HTTP/2 push with the "H2Push off" directive.
Priority
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.5 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | None |
Availability impact | High |
Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |