5.5
MEDIUM
CVE-2024-26777
Linux Kernel Sisfb Divide By Zero Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.

INFO

Published Date :

April 3, 2024, 5:15 p.m.

Last Modified :

Feb. 27, 2025, 2:34 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-2024-26777 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
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-2024-26777.

URL Resource
https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b Patch
https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207 Patch
https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e Patch
https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb Patch
https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313 Patch
https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1 Patch
https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52 Patch
https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99 Patch
https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b Patch
https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207 Patch
https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e Patch
https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb Patch
https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313 Patch
https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1 Patch
https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52 Patch
https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99 Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Mailing List
https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Mailing List

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-2024-26777 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-26777 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]

    Feb. 27, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Added CWE CWE-369
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:6.8:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 from (excluding) 6.1.80 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 from (excluding) 5.15.150 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 from (excluding) 5.4.270 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.7.7 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 from (excluding) 6.6.19 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 from (excluding) 5.10.211 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (excluding) 4.19.308
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
    Added Reference Type CVE: https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52 Types: Patch
    Added Reference Type CVE: https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99 Types: Patch
    Added Reference Type kernel.org: https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99 Types: Patch
    Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Types: Mailing List
    Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Types: Mailing List
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b
    Added Reference https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207
    Added Reference https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e
    Added Reference https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb
    Added Reference https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313
    Added Reference https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1
    Added Reference https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52
    Added Reference https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99
    Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
    Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Nov. 05, 2024

    Action Type Old Value New Value
    Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
    Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 27, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jun. 25, 2024

    Action Type Old Value New Value
    Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned]
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 29, 2024

    Action Type Old Value New Value
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Apr. 03, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: fbdev: sis: Error out if pixclock equals zero The userspace program could pass any values to the driver through ioctl() interface. If the driver doesn't check the value of pixclock, it may cause divide-by-zero error. In sisfb_check_var(), var->pixclock is used as a divisor to caculate drate before it is checked against zero. Fix this by checking it at the beginning. This is similar to CVE-2022-3061 in i740fb which was fixed by commit 15cf0b8.
    Added Reference kernel.org https://git.kernel.org/stable/c/84246c35ca34207114055a87552a1c4289c8fd7e [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/6db07619d173765bd8622d63809cbfe361f04207 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/cd36da760bd1f78c63c7078407baf01dd724f313 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/df6e2088c6f4cad539cf67cba2d6764461e798d1 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/f329523f6a65c3bbce913ad35473d83a319d5d99 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/99f1abc34a6dde248d2219d64aa493c76bbdd9eb [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/1d11dd3ea5d039c7da089f309f39c4cd363b924b [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/e421946be7d9bf545147bea8419ef8239cb7ca52 [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-2024-26777 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-2024-26777 weaknesses.

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