ALT-PU-2021-1950-1

BDU:2020-02039

MEDIUM5.3

Уязвимость системы инициализации Linux systemd, связанная с обращением к памяти после ее освобождения, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании

Published: 2020-05-13Modified: 2024-09-16

CVSS 3.xMEDIUM 5.3

CVSS:3.x/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

CVSS 2.0MEDIUM 4.6

CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P

References

CVE-2020-1712

BDU:2021-00092

MEDIUM6.7

Уязвимость подсистемы инициализации и управления службами Linux systemd, связанная с недостатком механизма проверки вводимых данных, позволяющая нарушителю получить доступ к конфиденциальным данным, нарушить их целостность, а также вызвать отказ в обслуживании

Published: 2021-01-13Modified: 2024-09-16

CVSS 3.xMEDIUM 6.7

CVSS:3.x/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS 2.0MEDIUM 6.2

CVSS:2.0/AV:L/AC:H/Au:N/C:C/I:C/A:C

References

CVE-2020-13776

CVE-2018-21029

CRITICAL9.8

systemd 239 through 245 accepts any certificate signed by a trusted certificate authority for DNS Over TLS. Server Name Indication (SNI) is not sent, and there is no hostname validation with the GnuTLS backend. NOTE: This has been disputed by the developer as not a vulnerability since hostname validation does not have anything to do with this issue (i.e. there is no hostname to be sent)

Published: 2019-10-30Modified: 2024-11-21

CVSS 2.0HIGH 7.5

CVSS:2.0/AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS 3.xCRITICAL 9.8

CVSS:3.x/CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

CVE-2020-13776

MEDIUM6.7

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.

Published: 2020-06-03Modified: 2025-06-09

CVSS 2.0MEDIUM 6.2

CVSS:2.0/AV:L/AC:H/Au:N/C:C/I:C/A:C

CVSS 3.xMEDIUM 6.7

CVSS:3.x/CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H

References

CVE-2020-1712

HIGH7.8

A heap use-after-free vulnerability was found in systemd before version v245-rc1, where asynchronous Polkit queries are performed while handling dbus messages. A local unprivileged attacker can abuse this flaw to crash systemd services or potentially execute code and elevate their privileges, by sending specially crafted dbus messages.

Published: 2020-03-31Modified: 2024-11-21

CVSS 2.0MEDIUM 4.6

CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS 3.xHIGH 7.8

CVSS:3.x/CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Package update systemd in branch c9f2

Closed issues (5)

systemd through v245 mishandles numerical usernames such as ones composed of decimal digits or 0x followed by hex digits, as demonstrated by use of root privileges when privileges of the 0x0 user account were intended. NOTE: this issue exists because of an incomplete fix for CVE-2017-1000082.