CVE-2022-42703
Linux kernel rmap.c Use-After-Free Vulnerability
Description
mm/rmap.c in the Linux kernel before 5.19.7 has a use-after-free related to leaf anon_vma double reuse.
INFO
Published Date :
Oct. 9, 2022, 11:15 p.m.
Last Modified :
Nov. 21, 2024, 7:25 a.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] |
Solution
- Update the affected Linux kernel packages.
- Update all other affected packages.
Public PoC/Exploit Available at Github
CVE-2022-42703 has a 12 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2022-42703.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-42703 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-2022-42703
weaknesses.
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
None
None
Makefile C Assembly Shell Perl C++ Awk sed Python GDB
Learn how to exploit linux
Dockerfile Shell Makefile C Python Meson
Linux kernel hbp exploit method demo. (i.e. the degradation version of CVE-2022-42703)
Makefile Shell C Python
SCTF 2023 kernel pwn && CVE-2023-3640
linux kernel LPE using hw_breakpoint attack tech demo
Makefile Shell C
None
Cybersecurity oriented awesome list
awesome awesome-list cybersecurity exploitation reverse-engineering
Repository of Bug-Bounty Writeups
bugbounty fuzzing penetration-testing security-tools
Kernel Address Space Layout Derandomization (KASLD) - A collection of various techniques to infer the Linux kernel base virtual address as an unprivileged local user, for the purpose of bypassing Kernel Address Space Layout Randomization (KASLR).
kaslr linux linux-kernel linux-kaslr kernel-exploit kernel
C Shell Makefile
A collection of links related to Linux kernel security and exploitation
linux-kernel kernel-exploitation exploit privilege-escalation security
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2022-42703 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2022-42703 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://bugs.chromium.org/p/project-zero/issues/detail?id=2351 Added Reference https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7 Added Reference https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542b Added Reference https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542b Added Reference https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Modified Analysis by [email protected]
Feb. 03, 2023
Action Type Old Value New Value Changed Reference Type https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html No Types Assigned https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html Exploit, Technical Description, Third Party Advisory -
CVE Modified by [email protected]
Dec. 08, 2022
Action Type Old Value New Value Added Reference https://googleprojectzero.blogspot.com/2022/12/exploiting-CVE-2022-42703-bringing-back-the-stack-attack.html [No Types Assigned] -
Initial Analysis by [email protected]
Oct. 11, 2022
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://bugs.chromium.org/p/project-zero/issues/detail?id=2351 No Types Assigned https://bugs.chromium.org/p/project-zero/issues/detail?id=2351 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7 No Types Assigned https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.7 Mailing List, Patch, Vendor Advisory Changed Reference Type https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542b No Types Assigned https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=2555283eb40df89945557273121e9393ef9b542b Mailing List, Patch, Vendor Advisory Changed Reference Type https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542b No Types Assigned https://github.com/torvalds/linux/commit/2555283eb40df89945557273121e9393ef9b542b Patch, Third Party Advisory Added CWE NIST CWE-416 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to (excluding) 5.19.7
Vulnerability Scoring Details
Base CVSS Score: 5.5
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.76 }} 0.02%
score
0.72429
percentile