Уязвимость CVE-2021-3640: Информация
Описание
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
Важность: HIGH (7,0) Вектор: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Исправленные пакеты
Ссылки на рекомендации, решения и инструменты
Ссылка | Ресурс |
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https://github.com/torvalds/linux/commit/99c23da0eed4fd20cae8243f2b51e10e66aa0951 |
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https://bugzilla.redhat.com/show_bug.cgi?id=1980646 |
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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/net/bluetooth/sco.c?h=v5.16&id=99c23da0eed4fd20cae8243f2b51e10e66aa0951 |
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https://www.openwall.com/lists/oss-security/2021/07/22/1 |
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https://ubuntu.com/security/CVE-2021-3640 |
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[debian-lts-announce] 20220309 [SECURITY] [DLA 2941-1] linux-4.19 security update |
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[debian-lts-announce] 20220309 [SECURITY] [DLA 2940-1] linux security update |
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DSA-5096 |
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https://security.netapp.com/advisory/ntap-20220419-0003/ |
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