CVE-2020-27784
MEDIUM
5.5
CVSS Score
Published: September 1, 2022 at 05:56 PM UTC
Updated: June 17, 2026 at 03:09 AM UTC
2 products affected across 2 vendorsLinux KernelKernel
Using kernel by N/A?
Get instant alerts when new vulnerabilities affect kernel - before attackers find them.
Real-time alertsTrack your software stackFree plan available
Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
Description
A vulnerability was found in the Linux kernel, where accessing a deallocated instance in printer_ioctl() printer_ioctl() tries to access of a printer_dev instance. However, use-after-free arises because it had been freed by gprinter_free().
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
4.1 ≤ v < 4.4.2414.10 ≤ v < 4.19.1544.20 ≤ v < 5.4.734.5 ≤ v < 4.9.2415.5 ≤ v < 5.8.175.9.0 ≤ v < 5.9.2
Affected range stops below 4.19.154, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.241, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.241, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.73, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.8.17, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.9.2, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (1)
x_refsource_MISCMailing ListPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e8d5f92b8d30bb4ade76494490c3c065e12411b1CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-201CWE-416
Get alerted
Stop reading CVE feeds looking for your own stack
Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.
Free plan, no card