7.8
HIGH
CVE-2021-47485
Linux IB/qib Buffer Overflow Vulnerability
Description

In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.

INFO

Published Date :

May 22, 2024, 9:15 a.m.

Last Modified :

Jan. 6, 2025, 7:53 p.m.

Source :

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

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Affected Products

The following products are affected by CVE-2021-47485 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-2021-47485.

URL Resource
https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 Patch
https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 Patch
https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad Patch
https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d Patch
https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 Patch
https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 Patch
https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 Patch
https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be Patch
https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 Patch
https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 Patch
https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad Patch
https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d Patch
https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 Patch
https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 Patch
https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 Patch
https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be 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-2021-47485 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-47485 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]

    Jan. 06, 2025

    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
    Added CWE NIST CWE-120
    Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.35 up to (excluding) 4.4.292 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.5 up to (excluding) 4.9.290 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10 up to (excluding) 4.14.255 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15 up to (excluding) 4.19.216 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.157 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.77 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.14.16 *cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc5:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc6:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.15:rc7:*:*:*:*:*:*
    Changed Reference Type https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 No Types Assigned https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 Patch
    Changed Reference Type https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 No Types Assigned https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 Patch
    Changed Reference Type https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 No Types Assigned https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 Patch
    Changed Reference Type https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 No Types Assigned https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 Patch
    Changed Reference Type https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad No Types Assigned https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad Patch
    Changed Reference Type https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad No Types Assigned https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad Patch
    Changed Reference Type https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d No Types Assigned https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d Patch
    Changed Reference Type https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d No Types Assigned https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d Patch
    Changed Reference Type https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 No Types Assigned https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 Patch
    Changed Reference Type https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 No Types Assigned https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 Patch
    Changed Reference Type https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 No Types Assigned https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 Patch
    Changed Reference Type https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 No Types Assigned https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 Patch
    Changed Reference Type https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 No Types Assigned https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 Patch
    Changed Reference Type https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 No Types Assigned https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 Patch
    Changed Reference Type https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be No Types Assigned https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be Patch
    Changed Reference Type https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be No Types Assigned https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be Patch
  • 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/0d4395477741608d123dad51def9fe50b7ebe952
    Added Reference https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724
    Added Reference https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad
    Added Reference https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d
    Added Reference https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42
    Added Reference https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0
    Added Reference https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780
    Added Reference https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    May. 28, 2024

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

    May. 22, 2024

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved: IB/qib: Protect from buffer overflow in struct qib_user_sdma_pkt fields Overflowing either addrlimit or bytes_togo can allow userspace to trigger a buffer overflow of kernel memory. Check for overflows in all the places doing math on user controlled buffers.
    Added Reference kernel.org https://git.kernel.org/stable/c/bda41654b6e0c125a624ca35d6d20beb8015b5d0 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/3f57c3f67fd93b4da86aeffea1ca32c484d054ad [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/60833707b968d5ae02a75edb7886dcd4a957cf0d [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/73d2892148aa4397a885b4f4afcfc5b27a325c42 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0f8cdfff06829a0b0348b6debc29ff6a61967724 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/c3e17e58f571f34c51aeb17274ed02c2ed5cf780 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/0d4395477741608d123dad51def9fe50b7ebe952 [No types assigned]
    Added Reference kernel.org https://git.kernel.org/stable/c/d39bf40e55e666b5905fdbd46a0dced030ce87be [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-2021-47485 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-2021-47485 weaknesses.

CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-42: MIME Conversion MIME Conversion CAPEC-44: Overflow Binary Resource File Overflow Binary Resource File CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-92: Forced Integer Overflow Forced Integer Overflow CAPEC-100: Overflow Buffers Overflow Buffers
CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
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Latest DB Update: May. 14, 2025 13:03