CVE-2021-33909

HIGH

7.8

Descricao

fs/seq_file.c in the Linux kernel 3.16 through 5.13.x before 5.13.4 does not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05.

Detalhes CVE

Pontuacao CVSS v3.17.8

SeveridadeHIGH

Vetor CVSSCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Vetor de ataqueLOCAL

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado7/20/2021

Ultima modificacao11/21/2024

Fontenvd

Avistamentos honeypot0

Produtos afetados

debian:debian_linuxfedoraproject:fedoralinux:linux_kernelnetapp:hci_management_nodenetapp:solidfireoracle:communications_session_border_controllersonicwall:sma1000sonicwall:sma1000_firmware

Fraquezas (CWE)

CWE-190CWE-787

Referencias

http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html(cve@mitre.org)

http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html(cve@mitre.org)

http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html(cve@mitre.org)

http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2021/07/22/7(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2021/08/25/10(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2021/09/17/2(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2021/09/17/4(cve@mitre.org)

http://www.openwall.com/lists/oss-security/2021/09/21/1(cve@mitre.org)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4(cve@mitre.org)

https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html(cve@mitre.org)

https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html(cve@mitre.org)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/(cve@mitre.org)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015(cve@mitre.org)

https://security.netapp.com/advisory/ntap-20210819-0004/(cve@mitre.org)

https://www.debian.org/security/2021/dsa-4941(cve@mitre.org)

https://www.openwall.com/lists/oss-security/2021/07/20/1(cve@mitre.org)

https://www.oracle.com/security-alerts/cpujan2022.html(cve@mitre.org)

http://packetstormsecurity.com/files/163621/Sequoia-A-Deep-Root-In-Linuxs-Filesystem-Layer.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/163671/Kernel-Live-Patch-Security-Notice-LSN-0079-1.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/164155/Kernel-Live-Patch-Security-Notice-LSN-0081-1.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/165477/Kernel-Live-Patch-Security-Notice-LSN-0083-1.html(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2021/07/22/7(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2021/08/25/10(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2021/09/17/2(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2021/09/17/4(af854a3a-2127-422b-91ae-364da2661108)

http://www.openwall.com/lists/oss-security/2021/09/21/1(af854a3a-2127-422b-91ae-364da2661108)

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.13.4(af854a3a-2127-422b-91ae-364da2661108)

https://github.com/torvalds/linux/commit/8cae8cd89f05f6de223d63e6d15e31c8ba9cf53b(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2021/07/msg00014.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2021/07/msg00015.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.debian.org/debian-lts-announce/2021/07/msg00016.html(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Z4UHHIGISO3FVRF4CQNJS4IKA25ATSFU/(af854a3a-2127-422b-91ae-364da2661108)

https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2022-0015(af854a3a-2127-422b-91ae-364da2661108)

https://security.netapp.com/advisory/ntap-20210819-0004/(af854a3a-2127-422b-91ae-364da2661108)

https://www.debian.org/security/2021/dsa-4941(af854a3a-2127-422b-91ae-364da2661108)

https://www.openwall.com/lists/oss-security/2021/07/20/1(af854a3a-2127-422b-91ae-364da2661108)

https://www.oracle.com/security-alerts/cpujan2022.html(af854a3a-2127-422b-91ae-364da2661108)

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