7.8
HIGH
CVE-2023-34319
AWS Xen Linux Hypercall Buffer Overflow
Description

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.

INFO

Published Date :

Sept. 22, 2023, 2:15 p.m.

Last Modified :

June 26, 2024, 3:54 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2023-34319 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
1 Debian debian_linux
1 Xen xen
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-34319.

URL Resource
http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Third Party Advisory
https://security.netapp.com/advisory/ntap-20240202-0001/ Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-432.html Mitigation Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-34319 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-34319 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Jun. 26, 2024

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html No Types Assigned http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html Third Party Advisory, VDB Entry
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html No Types Assigned https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20240202-0001/ No Types Assigned https://security.netapp.com/advisory/ntap-20240202-0001/ Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.336 up to (excluding) 4.10 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.302 up to (excluding) 4.14.321 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19.269 up to (excluding) 4.19.290 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.227 up to (excluding) 5.4.252 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10.159 up to (excluding) 5.10.189 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15.83 up to (excluding) 5.15.125 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.1.13 up to (excluding) 6.1.44 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.4.9
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Feb. 02, 2024

    Action Type Old Value New Value
    Added Reference Xen Project https://security.netapp.com/advisory/ntap-20240202-0001/ [No types assigned]
  • CVE Modified by [email protected]

    Jan. 11, 2024

    Action Type Old Value New Value
    Added Reference Xen Project https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html [No types assigned]
  • CVE Modified by [email protected]

    Nov. 29, 2023

    Action Type Old Value New Value
    Added Reference Xen Project http://packetstormsecurity.com/files/175963/Kernel-Live-Patch-Security-Notice-LSN-0099-1.html [No types assigned]
  • Modified Analysis by [email protected]

    Oct. 29, 2023

    Action Type Old Value New Value
    Changed Reference Type https://xenbits.xenproject.org/xsa/advisory-432.html No Types Assigned https://xenbits.xenproject.org/xsa/advisory-432.html Mitigation, Patch, Vendor Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Oct. 26, 2023

    Action Type Old Value New Value
    Removed Reference https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html [No Types Assigned]
    Removed Reference https://xenbits.xenproject.org/xsa/advisory-438.html [Patch, Vendor Advisory]
    Added Reference https://xenbits.xenproject.org/xsa/advisory-432.html [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 20, 2023

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Sep. 26, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://xenbits.xenproject.org/xsa/advisory-438.html No Types Assigned https://xenbits.xenproject.org/xsa/advisory-438.html Patch, Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:o:xen:xen:*:*:*:*:*:*:x86:* versions from (including) 3.2.0
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-34319 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-34319 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} -0.00%

score

0.05738

percentile

CVSS31 - Vulnerability Scoring System
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