Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2020-25668

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.

Published

2021-05-26T12:15:15.687

Last Modified

2024-11-21T05:18:24.567

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.0 (HIGH)

CVSSv2 Vector

AV:L/AC:M/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.4

Impact Score

10.0

Weaknesses

Type: Secondary
CWE-362
Type: Primary
CWE-662

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 4.4.242	Yes
Operating System	linux	linux_kernel	< 4.9.242	Yes
Operating System	linux	linux_kernel	< 4.14.204	Yes
Operating System	linux	linux_kernel	< 4.19.155	Yes
Operating System	linux	linux_kernel	< 5.4.75	Yes
Operating System	linux	linux_kernel	< 5.9.5	Yes
Operating System	debian	debian_linux	9.0	Yes
Application	netapp	cloud_backup	-	Yes
Application	netapp	solidfire_\&_hci_management_node	-	Yes
Operating System	netapp	solidfire_baseboard_management_controller_firmware	-	Yes
Hardware	netapp	solidfire_baseboard_management_controller	-	No
Operating System	netapp	h410c_firmware	-	Yes
Hardware	netapp	h410c	-	No
Operating System	netapp	h300s_firmware	-	Yes
Hardware	netapp	h300s	-	No
Operating System	netapp	h500s_firmware	-	Yes
Hardware	netapp	h500s	-	No
Operating System	netapp	h700s_firmware	-	Yes
Hardware	netapp	h700s	-	No
Operating System	netapp	h300e_firmware	-	Yes
Hardware	netapp	h300e	-	No
Operating System	netapp	h500e_firmware	-	Yes
Hardware	netapp	h500e	-	No
Operating System	netapp	h700e_firmware	-	Yes
Hardware	netapp	h700e	-	No
Operating System	netapp	h410s_firmware	-	Yes
Hardware	netapp	h410s	-	No
Operating System	netapp	a250_firmware	-	Yes
Hardware	netapp	a250	-	No
Operating System	netapp	500f_firmware	-	Yes
Hardware	netapp	500f	-	No

References

http://www.openwall.com/lists/oss-security/2020/10/30/1 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/11/04/3 Exploit, Mailing List, Patch, Third Party Advisory ([email protected])
https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220 Mailing List, Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Mailing List, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20210702-0005/ Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2020/10/30/1%2C ([email protected])
https://www.openwall.com/lists/oss-security/2020/11/04/3%2C ([email protected])
http://www.openwall.com/lists/oss-security/2020/10/30/1 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2020/11/04/3 Exploit, Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://bugzilla.redhat.com/show_bug.cgi?id=1893287%2C (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit?id=90bfdeef83f1d6c696039b6a917190dcbbad3220 Mailing List, Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20210702-0005/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2020/10/30/1%2C (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2020/11/04/3%2C (af854a3a-2127-422b-91ae-364da2661108)