Known Exploited Vulnerability
7.8
HIGH
CVE-2021-1048
Android Kernel Use-After-Free Vulnerability - [Actively Exploited]
Description

In ep_loop_check_proc of eventpoll.c, there is a possible way to corrupt memory due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-204573007References: Upstream kernel

INFO

Published Date :

Dec. 15, 2021, 7:15 p.m.

Last Modified :

Dec. 20, 2021, 4:56 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Android kernel contains a use-after-free vulnerability that allows for privilege escalation.

Required Action :

Apply updates per vendor instructions.

Public PoC/Exploit Available at Github

CVE-2021-1048 has a 3 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-1048 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 Google android
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-2021-1048.

URL Resource
https://source.android.com/security/bulletin/2021-11-01 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).

None

Updated: 2 months, 3 weeks ago
6 stars 0 fork 0 watcher
Born at : Feb. 25, 2023, 10:40 a.m. This repo has been linked 178 different CVEs too.

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 2 months, 2 weeks ago
516 stars 32 fork 32 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1181 different CVEs too.

A collection of links related to Linux kernel security and exploitation

linux-kernel kernel-exploitation exploit privilege-escalation security

Updated: 2 months, 1 week ago
5527 stars 902 fork 902 watcher
Born at : Nov. 13, 2016, 10:21 p.m. This repo has been linked 225 different CVEs too.

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

The following list is the news that have been mention CVE-2021-1048 vulnerability anywhere in the article.

  • TheCyberThrone
CISA KEV Catalog Update Part III- November 2024

The US CISA adds Microsoft, Metabase, Cisco, and Atlassian vulnerabilities to its Known Exploited Vulnerabilities Catalog based on the evidence of mass exploitation.CVE-2014-2120 Thr vulnerability wit ... Read more

Published Date: Nov 13, 2024 (1 week, 1 day ago)
  • TheCyberThrone
Cisco reveals no patch available for CVE-2024-20393 and CVE-2024-20470

Cisco  has revealed multiple vulnerabilities impacting its Small Business RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers, which could potentially expose businesses to serious security r ... Read more

Published Date: Oct 07, 2024 (1 month, 1 week ago)

The following table lists the changes that have been made to the CVE-2021-1048 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.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Dec. 20, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:L/AC:L/Au:N/C:C/I:C/A:C)
    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://source.android.com/security/bulletin/2021-11-01 No Types Assigned https://source.android.com/security/bulletin/2021-11-01 Patch, Vendor Advisory
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
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-2021-1048 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-2021-1048 weaknesses.

Exploit Prediction

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

0.06 }} 0.00%

score

0.25874

percentile

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