Executive Summary

Informations
Name CVE-2019-14842 First vendor Publication 2019-11-26
Vendor Cve Last vendor Modification 2024-11-21

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 9.8
Base Score 9.8 Environmental Score 9.8
impact SubScore 5.9 Temporal Score 9.8
Exploitabality Sub Score 3.9
 
Attack Vector Network Attack Complexity Low
Privileges Required None User Interaction None
Scope Unchanged Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Cvss Base Score 7.5 Attack Range Network
Cvss Impact Score 6.4 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Structured reply is a feature of the newstyle NBD protocol allowing the server to send a reply in chunks. A bounds check which was supposed to test for chunk offsets smaller than the beginning of the request did not work because of signed/unsigned confusion. If one of these chunks contains a negative offset then data under control of the server is written to memory before the read buffer supplied by the client. If the read buffer is located on the stack then this allows the stack return address from nbd_pread() to be trivially modified, allowing arbitrary code execution under the control of the server. If the buffer is located on the heap then other memory objects before the buffer can be overwritten, which again would usually lead to arbitrary code execution.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14842

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-681 Incorrect Conversion between Numeric Types

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14842
https://www.redhat.com/archives/libguestfs/2019-October/msg00060.html
Source Url

Alert History

If you want to see full details history, please login or register.
0
1
2
3
4
5
6
Date Informations
2024-11-28 13:27:12
  • Multiple Updates
2022-12-01 00:27:23
  • Multiple Updates
2021-05-04 13:29:01
  • Multiple Updates
2021-04-22 02:43:12
  • Multiple Updates
2020-12-04 21:23:25
  • Multiple Updates
2020-10-09 17:22:48
  • Multiple Updates
2020-05-23 02:25:02
  • First insertion