CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
EPSS
Percentile
5.1%
A buffer over-read (at the framebuffer layer) in the fbcon code in the
Linux kernel before 5.8.15 could be used by local attackers to read kernel
memory, aka CID-6735b4632def.
Author | Note |
---|---|
sbeattie | This patch depends on patch “fbdev, newport_con: Move FONT_EXTRA_WORDS macros into linux/font.h”. |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-126.129 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-56.62 | UNKNOWN |
ubuntu | 20.10 | noarch | linux | < 5.8.0-31.33 | UNKNOWN |
ubuntu | 16.04 | noarch | linux | < 4.4.0-197.229 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1088.93 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1030.31 | UNKNOWN |
ubuntu | 20.10 | noarch | linux-aws | < 5.8.0-1014.15 | UNKNOWN |
ubuntu | 14.04 | noarch | linux-aws | < 4.4.0-1082.86 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws | < 4.4.0-1118.132 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1030.31~18.04.1 | UNKNOWN |
bugzilla.suse.com/show_bug.cgi?id=1178886
cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.8.15
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6735b4632def0640dbdf4eb9f99816aca18c4f16
launchpad.net/bugs/cve/CVE-2020-28915
nvd.nist.gov/vuln/detail/CVE-2020-28915
security-tracker.debian.org/tracker/CVE-2020-28915
syzkaller.appspot.com/bug?id=08b8be45afea11888776f897895aef9ad1c3ecfd
ubuntu.com/security/notices/USN-4657-1
ubuntu.com/security/notices/USN-4658-1
ubuntu.com/security/notices/USN-4659-1
ubuntu.com/security/notices/USN-4660-1
ubuntu.com/security/notices/USN-4752-1
www.cve.org/CVERecord?id=CVE-2020-28915
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:P/I:P/A:C
CVSS3
Attack Vector
PHYSICAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:P/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H
EPSS
Percentile
5.1%