Executive Summary



This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Informations
Name CVE-2023-34319 First vendor Publication 2023-09-22
Vendor Cve Last vendor Modification 2024-02-02

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Overall CVSS Score 7.8
Base Score 7.8 Environmental Score 7.8
impact SubScore 5.9 Temporal Score 7.8
Exploitabality Sub Score 1.8
 
Attack Vector Local Attack Complexity Low
Privileges Required Low 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 :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

The fix for XSA-423 added logic to Linux'es netback driver to deal with a frontend splitting a packet in a way such that not all of the headers would come in one piece. Unfortunately the logic introduced there didn't account for the extreme case of the entire packet being split into as many pieces as permitted by the protocol, yet still being smaller than the area that's specially dealt with to keep all (possible) headers together. Such an unusual packet would therefore trigger a buffer overrun in the driver.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-34319

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

TypeDescriptionCount
Os 1
Os 1

Sources (Detail)

http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice...
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
https://security.netapp.com/advisory/ntap-20240202-0001/
Source Url
MISC https://xenbits.xenproject.org/xsa/advisory-432.html

Alert History

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Date Informations
2024-02-02 17:27:55
  • Multiple Updates
2024-01-12 00:27:53
  • Multiple Updates
2023-11-29 21:27:44
  • Multiple Updates
2023-10-29 09:27:43
  • Multiple Updates
2023-10-26 17:27:44
  • Multiple Updates
2023-10-20 09:27:56
  • Multiple Updates
2023-09-26 21:27:26
  • Multiple Updates
2023-09-22 21:27:18
  • First insertion