CVE-2021-47478
What it is
In the Linux kernel, the following vulnerability has been resolved: isofs: Fix out of bound access for corrupted isofs image When isofs image is suitably corrupted isofs_read_inode() can read data beyond the end of buffer. Sanity-check the directory entry length before using it.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, service disruption.
- Exploit odds
- 0.7% 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: 0.7% in the next 30 days (EPSS).
- Severity: 9.1 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.7% · EPSS, next 30 days
- Weakness
- CWE-125 · Out-of-bounds read
- Record status
- Modified
Affected
- Linux Kernel < 4.4.292
- Linux Kernel < 4.9.290
- Linux Kernel < 4.14.255
- Linux Kernel < 4.19.217
- Linux Kernel < 5.4.159
- Linux Kernel < 5.10.79
- Linux Kernel < 5.14.18
- Linux Kernel < 5.15.2
Attack profile CVSS 3.1 · 9.1
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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-2021-47478.md and follow it. Check whether this project is affected by CVE-2021-47478. 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/156ce5bb6cc43a80a743810199defb1dc3f55b7f
- https://git.kernel.org/stable/c/6e80e9314f8bb52d9eabe1907698718ff01120f5
- https://git.kernel.org/stable/c/86d4aedcbc69c0f84551fb70f953c24e396de2d7
- https://git.kernel.org/stable/c/9ec33a9b8790c212cc926a88c5e2105f97f3f57e
- https://git.kernel.org/stable/c/afbd40f425227e661d991757e11cc4db024e761f
- https://git.kernel.org/stable/c/b0ddff8d68f2e43857a84dce54c3deab181c8ae1
- https://git.kernel.org/stable/c/b2fa1f52d22c5455217b294629346ad23a744945
- https://git.kernel.org/stable/c/e7fb722586a2936b37bdff096c095c30ca06404d
- https://git.kernel.org/stable/c/e96a1866b40570b5950cda8602c2819189c62a48
- https://git.kernel.org/stable/c/156ce5bb6cc43a80a743810199defb1dc3f55b7f
References
- https://git.kernel.org/stable/c/156ce5bb6cc43a80a743810199defb1dc3f55b7f
- https://git.kernel.org/stable/c/6e80e9314f8bb52d9eabe1907698718ff01120f5
- https://git.kernel.org/stable/c/86d4aedcbc69c0f84551fb70f953c24e396de2d7
- https://git.kernel.org/stable/c/9ec33a9b8790c212cc926a88c5e2105f97f3f57e
- https://git.kernel.org/stable/c/afbd40f425227e661d991757e11cc4db024e761f
- https://git.kernel.org/stable/c/b0ddff8d68f2e43857a84dce54c3deab181c8ae1
- https://git.kernel.org/stable/c/b2fa1f52d22c5455217b294629346ad23a744945
- https://git.kernel.org/stable/c/e7fb722586a2936b37bdff096c095c30ca06404d
- https://git.kernel.org/stable/c/e96a1866b40570b5950cda8602c2819189c62a48
- https://git.kernel.org/stable/c/156ce5bb6cc43a80a743810199defb1dc3f55b7f
- https://git.kernel.org/stable/c/6e80e9314f8bb52d9eabe1907698718ff01120f5
- https://git.kernel.org/stable/c/86d4aedcbc69c0f84551fb70f953c24e396de2d7
- https://git.kernel.org/stable/c/9ec33a9b8790c212cc926a88c5e2105f97f3f57e
- https://git.kernel.org/stable/c/afbd40f425227e661d991757e11cc4db024e761f
- https://git.kernel.org/stable/c/b0ddff8d68f2e43857a84dce54c3deab181c8ae1
- https://git.kernel.org/stable/c/b2fa1f52d22c5455217b294629346ad23a744945
- https://git.kernel.org/stable/c/e7fb722586a2936b37bdff096c095c30ca06404d
- https://git.kernel.org/stable/c/e96a1866b40570b5950cda8602c2819189c62a48