CVE-2022-48987
Linux media driver V4L2 Blank Check Buffer Overrun
Description
In the Linux kernel, the following vulnerability has been resolved: media: v4l2-dv-timings.c: fix too strict blanking sanity checks Sanity checks were added to verify the v4l2_bt_timings blanking fields in order to avoid integer overflows when userspace passes weird values. But that assumed that userspace would correctly fill in the front porch, backporch and sync values, but sometimes all you know is the total blanking, which is then assigned to just one of these fields. And that can fail with these checks. So instead set a maximum for the total horizontal and vertical blanking and check that each field remains below that. That is still sufficient to avoid integer overflows, but it also allows for more flexibility in how userspace fills in these fields.
INFO
Published Date :
Oct. 21, 2024, 8:15 p.m.
Last Modified :
Nov. 1, 2024, 3:27 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
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-2022-48987.
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).
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The following list is the news that have been mention
CVE-2022-48987 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-48987 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.
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Initial Analysis by [email protected]
Nov. 01, 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/0d73b49c4037199472b29574ae21c21aef493971 No Types Assigned https://git.kernel.org/stable/c/0d73b49c4037199472b29574ae21c21aef493971 Patch Changed Reference Type https://git.kernel.org/stable/c/2572ab14b73aa45b6ae7e4c089ccf119fed5cf89 No Types Assigned https://git.kernel.org/stable/c/2572ab14b73aa45b6ae7e4c089ccf119fed5cf89 Patch Changed Reference Type https://git.kernel.org/stable/c/32f01f0306a98629508f84d7ef0d1d037bc274a2 No Types Assigned https://git.kernel.org/stable/c/32f01f0306a98629508f84d7ef0d1d037bc274a2 Patch Changed Reference Type https://git.kernel.org/stable/c/4afc77068e36cee45b39d4fdc7513de26980f72c No Types Assigned https://git.kernel.org/stable/c/4afc77068e36cee45b39d4fdc7513de26980f72c Patch Changed Reference Type https://git.kernel.org/stable/c/5eef2141776da02772c44ec406d6871a790761ee No Types Assigned https://git.kernel.org/stable/c/5eef2141776da02772c44ec406d6871a790761ee Patch Changed Reference Type https://git.kernel.org/stable/c/6fb8bc29bfa80707994a63cc97e2f9920e0b0608 No Types Assigned https://git.kernel.org/stable/c/6fb8bc29bfa80707994a63cc97e2f9920e0b0608 Patch Changed Reference Type https://git.kernel.org/stable/c/a2b56627c0d13009e02f6f2c0206c0451ed19a0e No Types Assigned https://git.kernel.org/stable/c/a2b56627c0d13009e02f6f2c0206c0451ed19a0e Patch Changed Reference Type https://git.kernel.org/stable/c/d3d14cdf1c7ae2caa3e999bae95ba99e955fb7c3 No Types Assigned https://git.kernel.org/stable/c/d3d14cdf1c7ae2caa3e999bae95ba99e955fb7c3 Patch Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.9.332 up to (excluding) 4.9.336 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.14.298 up to (excluding) 4.14.302 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.19.264 up to (excluding) 4.19.269 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.4.226 up to (excluding) 5.4.227 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.10.153 up to (excluding) 5.10.159 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.15.77 up to (excluding) 5.15.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.0.7 up to (excluding) 6.0.13 -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 21, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: media: v4l2-dv-timings.c: fix too strict blanking sanity checks Sanity checks were added to verify the v4l2_bt_timings blanking fields in order to avoid integer overflows when userspace passes weird values. But that assumed that userspace would correctly fill in the front porch, backporch and sync values, but sometimes all you know is the total blanking, which is then assigned to just one of these fields. And that can fail with these checks. So instead set a maximum for the total horizontal and vertical blanking and check that each field remains below that. That is still sufficient to avoid integer overflows, but it also allows for more flexibility in how userspace fills in these fields. Added Reference kernel.org https://git.kernel.org/stable/c/0d73b49c4037199472b29574ae21c21aef493971 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a2b56627c0d13009e02f6f2c0206c0451ed19a0e [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/2572ab14b73aa45b6ae7e4c089ccf119fed5cf89 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/4afc77068e36cee45b39d4fdc7513de26980f72c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/32f01f0306a98629508f84d7ef0d1d037bc274a2 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/6fb8bc29bfa80707994a63cc97e2f9920e0b0608 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/d3d14cdf1c7ae2caa3e999bae95ba99e955fb7c3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5eef2141776da02772c44ec406d6871a790761ee [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-48987 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-2022-48987
weaknesses.