5.5
MEDIUM
CVE-2023-52915
DVB-USB af9035 Null Pointer Dereference
Description

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer In af9035_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach af9035_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")

INFO

Published Date :

Sept. 6, 2024, 9:15 a.m.

Last Modified :

Sept. 10, 2024, 5:12 p.m.

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2023-52915 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
: Total Affected Vendor : 1 | Products : 1
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-2023-52915.

URL Resource
https://git.kernel.org/stable/c/0143f282b15f7cedc0392ea10050fb6000fd16e6 Patch
https://git.kernel.org/stable/c/41b7181a40af84448a2b144fb02d8bf32b7e9a23 Patch
https://git.kernel.org/stable/c/6c01ef65de0b321b2db1ef9abf8f1d15862b937e Patch
https://git.kernel.org/stable/c/7bf744f2de0a848fb1d717f5831b03db96feae89 Patch
https://git.kernel.org/stable/c/b2f54ed7739dfdf42c4df0a11131aad7c8635464 Patch
https://git.kernel.org/stable/c/b49c6e5dd236787f13a062ec528d724169f11152 Patch
https://git.kernel.org/stable/c/d9ef84a7c222497ecb5fdf93361c76931804825e Patch
https://git.kernel.org/stable/c/fa58d9db5cad4bb7bb694b6837e3b96d87554f2b Patch

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-2023-52915 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-52915 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.

  • Initial Analysis by [email protected]

    Sep. 10, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://git.kernel.org/stable/c/0143f282b15f7cedc0392ea10050fb6000fd16e6 No Types Assigned https://git.kernel.org/stable/c/0143f282b15f7cedc0392ea10050fb6000fd16e6 Patch
    Changed Reference Type https://git.kernel.org/stable/c/41b7181a40af84448a2b144fb02d8bf32b7e9a23 No Types Assigned https://git.kernel.org/stable/c/41b7181a40af84448a2b144fb02d8bf32b7e9a23 Patch
    Changed Reference Type https://git.kernel.org/stable/c/6c01ef65de0b321b2db1ef9abf8f1d15862b937e No Types Assigned https://git.kernel.org/stable/c/6c01ef65de0b321b2db1ef9abf8f1d15862b937e Patch
    Changed Reference Type https://git.kernel.org/stable/c/7bf744f2de0a848fb1d717f5831b03db96feae89 No Types Assigned https://git.kernel.org/stable/c/7bf744f2de0a848fb1d717f5831b03db96feae89 Patch
    Changed Reference Type https://git.kernel.org/stable/c/b2f54ed7739dfdf42c4df0a11131aad7c8635464 No Types Assigned https://git.kernel.org/stable/c/b2f54ed7739dfdf42c4df0a11131aad7c8635464 Patch
    Changed Reference Type https://git.kernel.org/stable/c/b49c6e5dd236787f13a062ec528d724169f11152 No Types Assigned https://git.kernel.org/stable/c/b49c6e5dd236787f13a062ec528d724169f11152 Patch
    Changed Reference Type https://git.kernel.org/stable/c/d9ef84a7c222497ecb5fdf93361c76931804825e No Types Assigned https://git.kernel.org/stable/c/d9ef84a7c222497ecb5fdf93361c76931804825e Patch
    Changed Reference Type https://git.kernel.org/stable/c/fa58d9db5cad4bb7bb694b6837e3b96d87554f2b No Types Assigned https://git.kernel.org/stable/c/fa58d9db5cad4bb7bb694b6837e3b96d87554f2b Patch
    Added CWE NIST CWE-476
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 4.14.326 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.295 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.257 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.197 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.133 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.55 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.5.5
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Sep. 06, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer In af9035_i2c_master_xfer, msg is controlled by user. When msg[i].buf is null and msg[i].len is zero, former checks on msg[i].buf would be passed. Malicious data finally reach af9035_i2c_master_xfer. If accessing msg[i].buf[0] without sanity check, null ptr deref would happen. We add check on msg[i].len to prevent crash. Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
    Added Reference kernel.org https://git.kernel.org/stable/c/b2f54ed7739dfdf42c4df0a11131aad7c8635464 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/fa58d9db5cad4bb7bb694b6837e3b96d87554f2b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/b49c6e5dd236787f13a062ec528d724169f11152 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/6c01ef65de0b321b2db1ef9abf8f1d15862b937e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/d9ef84a7c222497ecb5fdf93361c76931804825e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0143f282b15f7cedc0392ea10050fb6000fd16e6 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/41b7181a40af84448a2b144fb02d8bf32b7e9a23 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/7bf744f2de0a848fb1d717f5831b03db96feae89 [No types assigned]
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-2023-52915 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-2023-52915 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: