CVE-2020-25643
High
Description
A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7. Memory corruption and a read overflow is caused by improper input validation in the ppp_cp_parse_cr function which can cause the system to crash or cause a denial of service. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
SeverityHigh
CVSS7.2
Exploit probability—
Product
Linux Kernel
PublishedOct 6, 2020
First seenOct 6, 2020
Weakness typeCWE-20Improper input validation
How to fix
Update
- linux linux_kernel4.4.238, 4.9.238, 4.14.200, 4.19.148, 5.4.68, 5.8.12 or later
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 2.6.29 ≤ v < 4.4.238, 4.5 ≤ v < 4.9.238, 4.10 ≤ v < 4.14.200, 4.15 ≤ v < 4.19.148, 4.20 ≤ v < 5.4.68, 5.5 ≤ v < 5.8.12, 5.9.0 | 4.4.238, 4.9.238, 4.14.200, 4.19.148, 5.4.68, 5.8.12 |
| redhat enterprise_linux | 7.0, 8.0 | — |
| opensuse leap | 15.1, 15.2 | — |
| debian debian_linux | 9.0, 10.0 | — |
| netapp h410c_firmware | No range specified | — |
| starwindsoftware starwind_virtual_san | v8 | — |
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