CVE-2023-52494
What it is
In the Linux kernel, the following vulnerability has been resolved: bus: mhi: host: Add alignment check for event ring read pointer Though we do check the event ring read pointer by "is_valid_ring_ptr" to make sure it is in the buffer range, but there is another risk the pointer may be not aligned. Since we are expecting event ring elements are 128 bits(struct mhi_ring_element) aligned, an unaligned read pointer could lead to multiple issues like DoS or ring buffer memory corruption. So add a alignment check for event ring read pointer.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.3% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.3% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-787 · Out-of-bounds write
- Record status
- Modified
Affected
- Linux Kernel < 5.15.149
- Linux Kernel < 6.1.76
- Linux Kernel < 6.6.15
- Linux Kernel < 6.7.3
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-52494.md and follow it. Check whether this project is affected by CVE-2023-52494. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551
- https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08
- https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010
- https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b
- https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f
- https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551
- https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08
- https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010
- https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b
- https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f
References
- https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551
- https://git.kernel.org/stable/c/76ed0c6f6418cec6efe6f65a0b91f84be80b72eb
- https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08
- https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010
- https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b
- https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f
- https://git.kernel.org/stable/c/2df39ac8f813860f79782807c3f7acff40b3c551
- https://git.kernel.org/stable/c/94991728c84f8df54fd9eec9b85855ef9057ea08
- https://git.kernel.org/stable/c/a9ebfc405fe1be145f414eafadcbf09506082010
- https://git.kernel.org/stable/c/ecf8320111822a1ae5d5fc512953eab46d543d0b
- https://git.kernel.org/stable/c/eff9704f5332a13b08fbdbe0f84059c9e7051d5f