CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
8.5 | $0-$5k | 0.00 |
A vulnerability was found in cURL up to 7.86.0 (Network Utility Software) and classified as critical. This issue affects an unknown function of the component CONNECT Request Handler. The manipulation with an unknown input leads to a double free vulnerability. Using CWE to declare the problem leads to CWE-415. The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
curl before 7.86.0 has a double free. If curl is told to use an HTTP proxy for a transfer with a non-HTTP(S) URL, it sets up the connection to the remote server by issuing a CONNECT request to the proxy, and then tunnels the rest of the protocol through. An HTTP proxy might refuse this request (HTTP proxies often only allow outgoing connections to specific port numbers, like 443 for HTTPS) and instead return a non-200 status code to the client. Due to flaws in the error/cleanup handling, this could trigger a double free in curl if one of the following schemes were used in the URL for the transfer: dict, gopher, gophers, ldap, ldaps, rtmp, rtmps, or telnet. The earliest affected version is 7.77.0.
The weakness was presented 10/31/2022. The advisory is shared at curl.se. The identification of this vulnerability is CVE-2022-42915 since 10/13/2022. Neither technical details nor an exploit are publicly available.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
Product
Type
Name
Version
- 7.0
- 7.1
- 7.2
- 7.3
- 7.4
- 7.5
- 7.6
- 7.7
- 7.8
- 7.9
- 7.10
- 7.11
- 7.12
- 7.13
- 7.14
- 7.15
- 7.16
- 7.17
- 7.18
- 7.19
- 7.20
- 7.21
- 7.22
- 7.23
- 7.24
- 7.25
- 7.26
- 7.27
- 7.28
- 7.29
- 7.30
- 7.31
- 7.32
- 7.33
- 7.34
- 7.35
- 7.36
- 7.37
- 7.38
- 7.39
- 7.40
- 7.41
- 7.42
- 7.43
- 7.44
- 7.45
- 7.46
- 7.47
- 7.48
- 7.49
- 7.50
- 7.51
- 7.52
- 7.53
- 7.54
- 7.55
- 7.56
- 7.57
- 7.58
- 7.59
- 7.60
- 7.61
- 7.62
- 7.63
- 7.64
- 7.65
- 7.66
- 7.67
- 7.68
- 7.69
- 7.70
- 7.71
- 7.72
- 7.73
- 7.74
- 7.75
- 7.76
- 7.77
- 7.78
- 7.79
- 7.80
- 7.81
- 7.82
- 7.83
- 7.84
- 7.85
- 7.86
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 8.5VulDB Meta Temp Score: 8.5
VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
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💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Double freeCWE: CWE-415 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔍
Timeline
10/13/2022 🔍10/31/2022 🔍
10/31/2022 🔍
11/26/2022 🔍
Sources
Advisory: FEDORA-2022-01ffde372cStatus: Confirmed
CVE: CVE-2022-42915 (🔍)
Entry
Created: 10/31/2022 17:57Updated: 11/26/2022 15:34
Changes: 10/31/2022 17:57 (38), 11/26/2022 15:29 (2), 11/26/2022 15:34 (11)
Complete: 🔍
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