CVE-2020-25668
HIGH
7
CVSS Score
Published: May 26, 2021 at 11:11 AM UTC
Updated: June 17, 2026 at 03:07 AM UTC
27 products affected across 4 vendorsLinux KernelDebian LinuxCloud Backup
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Severity
HIGH7
Exploit prediction
EPSS 1%
Description
A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Debian Linux· Debiandrupal
95%v < 4.4.2424.10 ≤ v < 4.14.2044.15 ≤ v < 4.19.1554.20 ≤ v < 5.4.754.5 ≤ v < 4.9.2425.5 ≤ v < 5.9.5
Affected range stops below 4.14.204, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.19.155, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.4.242, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.9.242, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.4.75, so it looks safe — our inference, not a vendor statement
Affected range stops below 5.9.5, so it looks safe — our inference, not a vendor statement
Cloud Backup· NetAppdrupal
95%All versions
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (9)
Mailing Listx_refsource_MLISTExploitPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2020/10/30/1Mailing Listx_refsource_MLISTExploitPatchThird Party Advisory
Source: [email protected]
http://www.openwall.com/lists/oss-security/2020/11/04/3x_refsource_MISCMailing ListPatchThird Party Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220Mailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.htmlMailing Listx_refsource_MLISTThird Party Advisory
Source: [email protected]
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.htmlx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210702-0005/x_refsource_MISC
Source: [email protected]
https://www.openwall.com/lists/oss-security/2020/10/30/1%2CCVSS
- Attack Vector
- LOCAL
- Complexity
- HIGH
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-362CWE-662
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