Vulnerabilities > CVE-2024-47723 - Out-of-bounds Read vulnerability in Linux Kernel
Summary
In the Linux kernel, the following vulnerability has been resolved: jfs: fix out-of-bounds in dbNextAG() and diAlloc() In dbNextAG() , there is no check for the case where bmp->db_numag is greater or same than MAXAG due to a polluted image, which causes an out-of-bounds. Therefore, a bounds check should be added in dbMount(). And in dbNextAG(), a check for the case where agpref is greater than bmp->db_numag should be added, so an out-of-bounds exception should be prevented. Additionally, a check for the case where agno is greater or same than MAXAG should be added in diAlloc() to prevent out-of-bounds.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- 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.
References
- https://git.kernel.org/stable/c/0338e66cba272351ca9d7d03f3628e390e70963b
- https://git.kernel.org/stable/c/ead82533278502428883085a787d5a00f15e5eb9
- https://git.kernel.org/stable/c/6ce8b6ab44a8b5918c0ee373d4ad19d19017931b
- https://git.kernel.org/stable/c/c1ba4b8ca799ff1d99d01f37d7ccb7d5ba5533d2
- https://git.kernel.org/stable/c/128d5cfdcf844cb690c9295a3a1c1114c21fc15a
- https://git.kernel.org/stable/c/96855f40e152989c9e7c20c4691ace5581098acc
- https://git.kernel.org/stable/c/e63866a475562810500ea7f784099bfe341e761a
- https://git.kernel.org/stable/c/d1017d2a0f3f16dc1db5120e7ddbe7c6680425b0
- https://git.kernel.org/stable/c/5ad6284c8d433f8a213111c5c44ead4d9705b622