Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 2.6.29, < 4.4.238 |
| Redhat | Enterprise Linux | 7.0 |
| Opensuse | Leap | 15.1 |
| Debian | Debian Linux | 9.0 |
| Netapp | H410C Firmware | - |
| Netapp | H410C | - |
| Starwindsoftware | Starwind Virtual San | v8 |
Related Weaknesses (CWE)
References
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1879981Issue TrackingPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66Mailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00028.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing ListThird Party Advisory
- https://security.netapp.com/advisory/ntap-20201103-0002/Third Party Advisory
- https://www.debian.org/security/2020/dsa-4774Third Party Advisory
- https://www.starwindsoftware.com/security/sw-20210325-0002/Third Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.htmlMailing ListThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1879981Issue TrackingPatchThird Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66Mailing ListPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00028.htmlMailing ListThird Party Advisory
FAQ
What is CVE-2020-25643?
CVE-2020-25643 is a vulnerability with a CVSS score of 7.2 (HIGH). 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 whi...
How severe is CVE-2020-25643?
CVE-2020-25643 has been rated HIGH with a CVSS base score of 7.2/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2020-25643?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Redhat Enterprise Linux, Opensuse Leap, Debian Debian Linux, Netapp H410C Firmware.