CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
5.1%
An issue was discovered in drivers/accessibility/speakup/spk_ttyio.c in the
Linux kernel through 5.9.9. Local attackers on systems with the speakup
driver could cause a local denial of service attack, aka CID-d41227544427.
This occurs because of an invalid free when the line discipline is used
more than once.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | linux | < 4.15.0-136.140 | UNKNOWN |
ubuntu | 20.04 | noarch | linux | < 5.4.0-66.74 | UNKNOWN |
ubuntu | 20.10 | noarch | linux | < 5.8.0-44.50 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws | < 4.15.0-1094.101 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-aws | < 5.4.0-1038.40 | UNKNOWN |
ubuntu | 20.10 | noarch | linux-aws | < 5.8.0-1024.26 | UNKNOWN |
ubuntu | 18.04 | noarch | linux-aws-5.4 | < 5.4.0-1038.40~18.04.1 | UNKNOWN |
ubuntu | 16.04 | noarch | linux-aws-hwe | < 4.15.0-1094.101~16.04.1 | UNKNOWN |
ubuntu | 20.04 | noarch | linux-azure | < 5.4.0-1040.42 | UNKNOWN |
ubuntu | 20.10 | noarch | linux-azure | < 5.8.0-1023.25 | UNKNOWN |
www.openwall.com/lists/oss-security/2020/11/19/5
git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4122754442799187d5d537a9c039a49a67e57f1
git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-linus&id=d4122754442799187d5d537a9c039a49a67e57f1
github.com/torvalds/linux/commit/d4122754442799187d5d537a9c039a49a67e57f1
launchpad.net/bugs/cve/CVE-2020-28941
nvd.nist.gov/vuln/detail/CVE-2020-28941
security-tracker.debian.org/tracker/CVE-2020-28941
ubuntu.com/security/notices/USN-4749-1
ubuntu.com/security/notices/USN-4750-1
ubuntu.com/security/notices/USN-4751-1
www.cve.org/CVERecord?id=CVE-2020-28941
www.openwall.com/lists/oss-security/2020/11/19/3
CVSS2
Attack Vector
LOCAL
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS3
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
5.1%