CVE-2020-25643
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.29%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 3.29% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- linux/linux kernel · redhat/enterprise linux · opensuse/leap · debian/debian linux · netapp/h410c firmware · starwindsoftware/starwind virtual san
- Source
- secalert@redhat.com
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 List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1879981Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105Mailing List, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00028.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing List, Third 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 List, Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1879981Issue Tracking, Patch, Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105Mailing List, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00028.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.htmlMailing List, Third 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.