CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability was found in Facebook HHVM up to 4.83.0 (Social Network Software). It has been declared as critical. Affected by this vulnerability is the function ldap_escape
. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability.
The weakness was presented 03/11/2021. It is possible to read the advisory at hhvm.com. This vulnerability is known as CVE-2020-1916. Technical details of the vulnerability are known, but there is no available exploit.
Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com.
Product
Type
Vendor
Name
Version
- 4.0
- 4.1
- 4.2
- 4.3
- 4.4
- 4.5
- 4.6
- 4.7
- 4.8
- 4.9
- 4.10
- 4.11
- 4.12
- 4.13
- 4.14
- 4.15
- 4.16
- 4.17
- 4.18
- 4.19
- 4.20
- 4.21
- 4.22
- 4.23
- 4.24
- 4.25
- 4.26
- 4.27
- 4.28
- 4.29
- 4.30
- 4.31
- 4.32
- 4.33
- 4.34
- 4.35
- 4.36
- 4.37
- 4.38
- 4.39
- 4.40
- 4.41
- 4.42
- 4.43
- 4.44
- 4.45
- 4.46
- 4.47
- 4.48
- 4.49
- 4.50
- 4.51
- 4.52
- 4.53
- 4.54
- 4.55
- 4.56
- 4.56.0
- 4.56.1
- 4.57
- 4.58
- 4.59
- 4.60
- 4.61
- 4.62
- 4.63
- 4.64
- 4.65
- 4.66
- 4.67
- 4.68
- 4.69
- 4.70
- 4.71
- 4.72
- 4.73
- 4.74
- 4.75
- 4.76
- 4.77
- 4.78
- 4.79
- 4.80
- 4.81
- 4.82
- 4.83
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: 7.6VulDB Meta Temp Score: 7.5
VulDB Base Score: 5.5
VulDB Temp Score: 5.3
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: Heap-based overflowCWE: CWE-122 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍
Local: No
Remote: Partially
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: PatchStatus: 🔍
0-Day Time: 🔍
Patch: github.com
Timeline
12/02/2019 🔍03/11/2021 🔍
03/11/2021 🔍
03/30/2021 🔍
Sources
Advisory: hhvm.comStatus: Confirmed
Confirmation: 🔍
CVE: CVE-2020-1916 (🔍)
Entry
Created: 03/11/2021 08:49Updated: 03/30/2021 21:03
Changes: 03/11/2021 08:49 (40), 03/11/2021 08:57 (5), 03/30/2021 21:00 (3), 03/30/2021 21:03 (18)
Complete: 🔍
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