7.8
HIGH
CVE-2022-28736
"GRUB2 Chainloader Use-After-Free Vulnerability"
Description

There's a use-after-free vulnerability in grub_cmd_chainloader() function; The chainloader command is used to boot up operating systems that doesn't support multiboot and do not have direct support from GRUB2. When executing chainloader more than once a use-after-free vulnerability is triggered. If an attacker can control the GRUB2's memory allocation pattern sensitive data may be exposed and arbitrary code execution can be achieved.

INFO

Published Date :

July 20, 2023, 1:15 a.m.

Last Modified :

Nov. 21, 2024, 6:57 a.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
Public PoC/Exploit Available at Github

CVE-2022-28736 has a 17 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-2022-28736 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 Gnu grub2
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-2022-28736.

URL Resource
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230825-0002/
https://www.openwall.com/lists/oss-security/2022/06/07/5 Mailing List Third Party Advisory
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 Third Party Advisory
https://security.netapp.com/advisory/ntap-20230825-0002/
https://www.openwall.com/lists/oss-security/2022/06/07/5 Mailing List Third Party 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).

shim-review but not forked to be able to use LFS

Dockerfile Shell

Updated: 1 month, 1 week ago
0 stars 0 fork 0 watcher
Born at : Nov. 11, 2024, 9:23 a.m. This repo has been linked 28 different CVEs too.

None

Dockerfile

Updated: 2 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 5, 2024, 8:41 a.m. This repo has been linked 28 different CVEs too.

None

Dockerfile Makefile

Updated: 3 weeks, 6 days ago
0 stars 0 fork 0 watcher
Born at : Sept. 6, 2024, 10:39 a.m. This repo has been linked 28 different CVEs too.

None

Dockerfile

Updated: 4 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : May 23, 2024, 1:34 p.m. This repo has been linked 28 different CVEs too.

None

Updated: 7 months ago
0 stars 0 fork 0 watcher
Born at : May 17, 2024, 8:53 p.m. This repo has been linked 24 different CVEs too.

None

Dockerfile Shell

Updated: 7 months ago
0 stars 1 fork 1 watcher
Born at : May 17, 2024, 8:46 p.m. This repo has been linked 28 different CVEs too.

None

Dockerfile

Updated: 6 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : March 4, 2024, 8:25 p.m. This repo has been linked 28 different CVEs too.

Repository for all information needed for shim-review

Dockerfile

Updated: 11 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Jan. 15, 2024, 9:57 a.m. This repo has been linked 28 different CVEs too.

shim-review for Navix

Dockerfile

Updated: 1 year, 2 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 28, 2023, 8:02 a.m. This repo has been linked 28 different CVEs too.

None

Updated: 1 year, 6 months ago
0 stars 0 fork 0 watcher
Born at : May 28, 2023, 10:13 a.m. This repo has been linked 24 different CVEs too.

None

Dockerfile Makefile

Updated: 10 months, 3 weeks ago
1 stars 0 fork 0 watcher
Born at : Dec. 14, 2022, 11:14 p.m. This repo has been linked 24 different CVEs too.

None

Dockerfile

Updated: 1 year, 8 months ago
0 stars 0 fork 0 watcher
Born at : July 15, 2022, 6:34 a.m. This repo has been linked 22 different CVEs too.

None

Dockerfile

Updated: 2 years, 5 months ago
0 stars 0 fork 0 watcher
Born at : July 2, 2022, 8:27 p.m. This repo has been linked 24 different CVEs too.

UEFI shim review submission

Updated: 3 years, 2 months ago
0 stars 1 fork 1 watcher
Born at : June 14, 2021, 10:34 p.m. This repo has been linked 22 different CVEs too.

None

Dockerfile

Updated: 2 years, 5 months ago
0 stars 0 fork 0 watcher
Born at : Oct. 18, 2019, 9:18 p.m. This repo has been linked 24 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-2022-28736 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2022-28736 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736
    Added Reference https://security.netapp.com/advisory/ntap-20230825-0002/
    Added Reference https://www.openwall.com/lists/oss-security/2022/06/07/5
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Aug. 25, 2023

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20230825-0002/ [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 28, 2023

    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
    Changed Reference Type https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 No Types Assigned https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-28736 Third Party Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2022/06/07/5 No Types Assigned https://www.openwall.com/lists/oss-security/2022/06/07/5 Mailing List, Third Party Advisory
    Added CWE NIST CWE-416
    Added CPE Configuration OR *cpe:2.3:a:gnu:grub2:*:*:*:*:*:*:*:* versions from (including) 2.00 up to (excluding) 2.06-3
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-2022-28736 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-2022-28736 weaknesses.

Exploit Prediction

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

0.04 }} 0.00%

score

0.07856

percentile

CVSS31 - Vulnerability Scoring System
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