3.3 CVE-2022-38934

Exploit Patch

readelf in ToaruOS 2.0.1 has some arbitrary address read vulnerabilities when parsing a crafted ELF file.
https://nvd.nist.gov/vuln/detail/CVE-2022-38934

Categories

CWE-125 : Out-of-bounds Read
Typically, this can allow attackers to read sensitive information from other memory locations or cause a crash. A crash can occur when the code reads a variable amount of data and assumes that a sentinel exists to stop the read operation, such as a NUL in a string. The expected sentinel might not be located in the out-of-bounds memory, causing excessive data to be read, leading to a segmentation fault or a buffer overflow. The software may modify an index or perform pointer arithmetic that references a memory location that is outside of the boundaries of the buffer. A subsequent read operation then produces undefined or unexpected results.

References

MISC Patch Exploit

https://github.com/klange/toaruos/issues/244 Exploit Issue Tracking Patch Third Party Advisory

CPE

cpe	start	end
Configuration 1
cpe:2.3:o:toaruos:toaruos:2.0.1:::::::*

Exploits

id	description	date
No known exploits

CAPEC

id	description	severity
540	Overread Buffers An adversary attacks a target by providing input that causes an application to read beyond the boundary of a defined buffer. This typically occurs when a value influencing where to start or stop reading is set to reflect positions outside of the valid memory location of the buffer. This type of attack may result in exposure of sensitive information, a system crash, or arbitrary code execution. [Identify target application] The adversary identifies a target application or program to perform the buffer overread on. Adversaries often look for applications that accept user input and that perform manual memory management. [Find attack vector] The adversary identifies an attack vector by looking for areas in the application where they can specify to read more data than is required. [Overread the buffer] The adversary provides input to the application that gets it to read past the bounds of a buffer, possibly revealing sensitive information that was not intended to be given to the adversary.	High

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