An allocation of resources without limits or throttling vulnerability exists in curl <v7.88.0 based on the "chained" HTTP compression algorithms, meaning that a server response can be compressed multiple times and potentially with differentalgorithms. The number of acceptable "links" in this "decompression chain" wascapped, but the cap was implemented on a per-header basis allowing a maliciousserver to insert a virtually unlimited number of compression steps simply byusing many headers. The use of such a decompression chain could result in a "malloc bomb", making curl end up spending enormous amounts of allocated heap memory, or trying to and returning out of memory errors.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
| Attack Vector | NETWORK |
|---|---|
| Attack Complexity | LOW |
| Privileges Required | NONE |
| User Interaction | REQUIRED |
| Scope | UNCHANGED |
| Confidentiality Impact | NONE |
| Integrity Impact | NONE |
| Availability Impact | HIGH |
| Source | Type | Description |
|---|---|---|
| [email protected] | Secondary |
en
CWE-770
|
| [email protected] | Primary |
en
CWE-770
|
| 134c704f-9b21-4f2e-91b3-4a467353bcc0 | Secondary |
en
CWE-770
|
| Vendor | Product | Version | Update | Type |
|---|---|---|---|---|
| haxx | curl | * | <built-in method update of dict object at 0x72a9cdf00c40> | Application |
| fedoraproject | fedora | 36 | <built-in method update of dict object at 0x72a99a6423c0> | Operating System |
| debian | debian_linux | 10.0 | <built-in method update of dict object at 0x72a99a643940> | Operating System |
| debian | debian_linux | 11.0 | <built-in method update of dict object at 0x72aa274f5240> | Operating System |
| netapp | h300s_firmware | - | <built-in method update of dict object at 0x72a9cdf01fc0> | Operating System |
| netapp | h500s_firmware | - | <built-in method update of dict object at 0x72a9b0b4b440> | Operating System |
| netapp | h700s_firmware | - | <built-in method update of dict object at 0x72a99a642580> | Operating System |
| netapp | h410s_firmware | - | <built-in method update of dict object at 0x72a99a6408c0> | Operating System |
| netapp | clustered_data_ontap | - | <built-in method update of dict object at 0x72a99a641000> | Application |
| splunk | universal_forwarder | * | <built-in method update of dict object at 0x72a9b0b4b7c0> | Application |
| splunk | universal_forwarder | * | <built-in method update of dict object at 0x72a99a642880> | Application |
| splunk | universal_forwarder | 9.1.0 | <built-in method update of dict object at 0x72a99a640740> | Application |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
| Yes | cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| No | cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* |
| Vulnerable | CPE |
|---|---|
| Yes | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:* |
| Yes | cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:* |