CVE-2021-47443
What it is
In the Linux kernel, the following vulnerability has been resolved: NFC: digital: fix possible memory leak in digital_tg_listen_mdaa() 'params' is allocated in digital_tg_listen_mdaa(), but not free when digital_send_cmd() failed, which will cause memory leak. Fix it by freeing 'params' if digital_send_cmd() return failed.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.2% 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: 0.2% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-401
- Record status
- Analyzed
Affected
- Linux Kernel < 4.4.290
- Linux Kernel < 4.9.288
- Linux Kernel < 4.14.252
- Linux Kernel < 4.19.213
- Linux Kernel < 5.4.155
- Linux Kernel < 5.10.75
- Linux Kernel < 5.14.14
- Linux Kernel 5.15
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/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-2021-47443.md and follow it. Check whether this project is affected by CVE-2021-47443. 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/3f2960b39f22e26cf8addae93c3f5884d1c183c9
- https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5
- https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c
- https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907
- https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed
- https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416
- https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e
- https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b
- https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9
- https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5
References
- https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9
- https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5
- https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c
- https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907
- https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed
- https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416
- https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e
- https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b
- https://git.kernel.org/stable/c/3f2960b39f22e26cf8addae93c3f5884d1c183c9
- https://git.kernel.org/stable/c/429054ec51e648d241a7e0b465cf44f6633334c5
- https://git.kernel.org/stable/c/564249219e5b5673a8416b5181875d828c3f1e8c
- https://git.kernel.org/stable/c/58e7dcc9ca29c14e44267a4d0ea61e3229124907
- https://git.kernel.org/stable/c/7ab488d7228a9dceb2456867f1f0919decf6efed
- https://git.kernel.org/stable/c/9881b0c860649f27ef2565deef011e516390f416
- https://git.kernel.org/stable/c/a67d47e32c91e2b10402cb8c081774cbf08edb2e
- https://git.kernel.org/stable/c/b7b023e6ff567e991c31cd425b0e1d16779c938b