CVE-2020-24658
Arm Compiler Stack Protection Guard Value Overwrite Vulnerability
Description
Arm Compiler 5 through 5.06u6 has an error in a stack protection feature designed to help spot stack-based buffer overflows in local arrays. When this feature is enabled, a protected function writes a guard value to the stack prior to (above) any vulnerable arrays in the stack. The guard value is checked for corruption on function return; corruption leads to an error-handler call. In certain circumstances, the reference value that is compared against the guard value is itself also written to the stack (after any vulnerable arrays). The reference value is written to the stack when the function runs out of registers to use for other temporary data. If both the reference value and the guard value are written to the stack, then the stack protection will fail to spot corruption when both values are overwritten with the same value. For both the reference value and the guard value to be corrupted, there would need to be both a buffer overflow and a buffer underflow in the vulnerable arrays (or some other vulnerability that causes two separated stack entries to be corrupted).
INFO
Published Date :
Dec. 24, 2020, 6:15 p.m.
Last Modified :
July 21, 2021, 11:39 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
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-2020-24658.
| URL | Resource |
|---|---|
| https://developer.arm.com/support/arm-security-updates/arm-compiler-5-stack-protection | 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).
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The following list is the news that have been mention
CVE-2020-24658 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-24658 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 -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-787 CWE-770 CWE-787 -
Initial Analysis by [email protected]
Dec. 31, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:L/AC:M/Au:N/C:P/I:P/A:P) 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://developer.arm.com/support/arm-security-updates/arm-compiler-5-stack-protection No Types Assigned https://developer.arm.com/support/arm-security-updates/arm-compiler-5-stack-protection Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:arm:arm_compiler:*:*:*:*:*:*:*:* versions from (including) 5.01 up to (excluding) 5.06 *cpe:2.3:a:arm:arm_compiler:5.06:-:*:*:*:*:*:* *cpe:2.3:a:arm:arm_compiler:5.06:update1:*:*:*:*:*:* *cpe:2.3:a:arm:arm_compiler:5.06:update2:*:*:*:*:*:* *cpe:2.3:a:arm:arm_compiler:5.06:update3:*:*:*:*:*:* *cpe:2.3:a:arm:arm_compiler:5.06:update4:*:*:*:*:*:* *cpe:2.3:a:arm:arm_compiler:5.06:update5:*:*:*:*:*:* *cpe:2.3:a:arm:arm_compiler:5.06:update6:*:*:*:*:*:* *cpe:2.3:a:arm:arm_compiler:5.06:update7:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-24658 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-2020-24658
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.05 }} 0.00%
score
0.18936
percentile