High severity · published Oct 6, 2020
CVE-2020-25643
A flaw was found in the HDLC_PPP module of the Linux kernel in versions before 5.9-rc7
7.2
CVSS
3.3%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.3% · higher than 88% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
2.6.29 before 4.4.238; 4.5 before 4.9.238; 4.10 before 4.14.200; 4.15 before 4.19.148; 4.20 before 5.4.68; 5.5 before 5.8.12; +6 more · source: NVD
DL
Debian Linux · Debian
9.0; 10.0 · source: NVD
EL
Enterprise Linux · Redhat
7.0; 8.0 · source: NVD
HF
H410c Firmware · Netapp
All versions, or not specified · source: NVD
LE
Leap · Opensuse
15.1; 15.2 · source: NVD
SV
Starwind Virtual San · Starwindsoftware
v8; v8; v8; v8; v8; v8 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2020-25643
CVE.org
https://www.cve.org/CVERecord?id=CVE-2020-25643
Third Party Advisory
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00021.html
Mailing List
http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00042.html
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1879981
Mailing List
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=66d42ed8b25b64eb63111a2b8582c5afc8bf1105
Mailing List
https://lists.debian.org/debian-lts-announce/2020/10/msg00028.html
Mailing List
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
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