CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.7 | $0-$5k | 0.00 |
A vulnerability was found in GNU libmicrohttpd up to 0.9.70 (Web Server). It has been declared as critical. This vulnerability affects the function post_process_urlencoded
. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was disclosed 03/26/2021. The advisory is shared for download at bugzilla.redhat.com. This vulnerability was named CVE-2021-3466. There are known technical details, but no exploit is available.
Upgrading to version 0.9.71 eliminates this vulnerability.
Product
Type
Vendor
Name
Version
- 0.9.0
- 0.9.1
- 0.9.2
- 0.9.3
- 0.9.4
- 0.9.5
- 0.9.6
- 0.9.7
- 0.9.8
- 0.9.9
- 0.9.10
- 0.9.11
- 0.9.12
- 0.9.13
- 0.9.14
- 0.9.15
- 0.9.16
- 0.9.17
- 0.9.18
- 0.9.19
- 0.9.20
- 0.9.21
- 0.9.22
- 0.9.23
- 0.9.24
- 0.9.25
- 0.9.26
- 0.9.27
- 0.9.28
- 0.9.29
- 0.9.30
- 0.9.31
- 0.9.32
- 0.9.33
- 0.9.34
- 0.9.35
- 0.9.36
- 0.9.37
- 0.9.38
- 0.9.39
- 0.9.40
- 0.9.41
- 0.9.42
- 0.9.43
- 0.9.44
- 0.9.45
- 0.9.46
- 0.9.47
- 0.9.48
- 0.9.49
- 0.9.50
- 0.9.51
- 0.9.52
- 0.9.53
- 0.9.54
- 0.9.55
- 0.9.56
- 0.9.57
- 0.9.58
- 0.9.59
- 0.9.60
- 0.9.61
- 0.9.62
- 0.9.63
- 0.9.64
- 0.9.65
- 0.9.66
- 0.9.67
- 0.9.68
- 0.9.69
- 0.9.70
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: 8.0VulDB Meta Temp Score: 7.9
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 9.8
NVD Vector: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
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: 🔍
NVD Base Score: 🔍
Exploiting
Class: Buffer overflowCWE: CWE-120 / CWE-119
ATT&CK: Unknown
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: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: libmicrohttpd 0.9.71
Timeline
03/24/2021 🔍03/26/2021 🔍
03/26/2021 🔍
04/05/2021 🔍
Sources
Vendor: gnu.orgAdvisory: bugzilla.redhat.com
Status: Confirmed
CVE: CVE-2021-3466 (🔍)
Entry
Created: 03/26/2021 08:18Updated: 04/05/2021 12:35
Changes: 03/26/2021 08:18 (39), 04/05/2021 12:32 (5), 04/05/2021 12:35 (18)
Complete: 🔍
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