5.5

CVE-2020-28941

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version <= 5.9.9
Fedoraproject ≫ Fedora Version32
Fedoraproject ≫ Fedora Version33
Debian ≫ Debian Linux Version9.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.33% 0.243
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvd@nist.gov 4.9 3.9 6.9
AV:L/AC:L/Au:N/C:N/I:N/A:C
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-763 Release of Invalid Pointer or Reference

The product attempts to return a memory resource to the system, but it calls the wrong release function or calls the appropriate release function incorrectly.

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
Third Party Advisory
Mailing List
http://www.openwall.com/lists/oss-security/2020/11/19/5
Patch
Third Party Advisory
Mailing List
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d4122754442799187d5d537a9c039a49a67e57f1
Patch
Vendor Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git/commit/?h=tty-linus&id=d4122754442799187d5d537a9c039a49a67e57f1
Patch
Vendor Advisory
https://github.com/torvalds/linux/commit/d4122754442799187d5d537a9c039a49a67e57f1
Patch
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TITJQPYDWZ4NB2ONJWUXW75KSQIPF35T/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZF4OGZPKTAJJXWHPIFP3LHEWWEMR5LPT/
https://www.openwall.com/lists/oss-security/2020/11/19/3
Patch
Third Party Advisory
Mailing List