Facebook HHVM up to 4.83.0 ldap_escape heap-based overflow

Summaryinfo

A vulnerability was found in Facebook HHVM up to 4.83.0. It has been classified as critical. This issue affects the function ldap_escape. This manipulation causes heap-based overflow. This vulnerability appears as CVE-2020-1916. There is no available exploit. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

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.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Social Network Software

Vendor

• Facebook

Name

• HHVM

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
• 4.78.0
• 4.79
• 4.79.0
• 4.80
• 4.80.0
• 4.81
• 4.81.0
• 4.82
• 4.82.0
• 4.83.0

License

• free

Website

• Product: https://github.com/facebook/hhvm/

CPE 2.3info

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CPE 2.2info

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