All errata/sisyphus/ALT-PU-2016-2218-1
ALT-PU-2016-2218-1

Package update kernel-image-un-def in branch sisyphus

Version4.8.5-alt1
Task#170734
Published2016-10-29
Max severityHIGH
Severity:

Closed issues (9)

BDU:2022-03979
MEDIUM4.7

Уязвимость функции load_elf_binary() ядра операционной системы Linux, позволяющая нарушителю обойти механизм защиты ASLR и раскрыть защищаемую информацию

Published: 2022-06-29Modified: 2024-05-22
CVSS 3.xMEDIUM 4.7
CVSS:3.x/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0MEDIUM 4.4
CVSS:2.0/AV:L/AC:M/Au:S/C:C/I:N/A:N
References
CVE-2016-10905
HIGH7.8

An issue was discovered in fs/gfs2/rgrp.c in the Linux kernel before 4.8. A use-after-free is caused by the functions gfs2_clear_rgrpd and read_rindex_entry.

Published: 2019-08-19Modified: 2024-11-21
CVSS 2.0MEDIUM 6.1
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:C
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
CVE-2016-7042
MEDIUM6.2

The proc_keys_show function in security/keys/proc.c in the Linux kernel through 4.8.2, when the GNU Compiler Collection (gcc) stack protector is enabled, uses an incorrect buffer size for certain timeout data, which allows local users to cause a denial of service (stack memory corruption and panic) by reading the /proc/keys file.

Published: 2016-10-16Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 6.2
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
CVE-2016-7097
MEDIUM4.4

The filesystem implementation in the Linux kernel through 4.8.2 preserves the setgid bit during a setxattr call, which allows local users to gain group privileges by leveraging the existence of a setgid program with restrictions on execute permissions.

Published: 2016-10-16Modified: 2025-04-12
CVSS 2.0LOW 3.6
CVSS:2.0/AV:L/AC:L/Au:N/C:P/I:P/A:N
CVSS 3.xMEDIUM 4.4
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
References
CVE-2016-8660
MEDIUM5.5

The XFS subsystem in the Linux kernel through 4.8.2 allows local users to cause a denial of service (fdatasync failure and system hang) by using the vfs syscall group in the trinity program, related to a "page lock order bug in the XFS seek hole/data implementation."

Published: 2016-10-16Modified: 2025-04-12
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:N/A:C
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
References
CVE-2017-15102
MEDIUM6.3

The tower_probe function in drivers/usb/misc/legousbtower.c in the Linux kernel before 4.8.1 allows local users (who are physically proximate for inserting a crafted USB device) to gain privileges by leveraging a write-what-where condition that occurs after a race condition and a NULL pointer dereference.

Published: 2017-11-15Modified: 2025-04-20
CVSS 2.0MEDIUM 6.9
CVSS:2.0/AV:L/AC:M/Au:N/C:C/I:C/A:C
CVSS 3.xMEDIUM 6.3
CVSS:3.x/CVSS:3.0/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
References
CVE-2018-16597
MEDIUM5.5

An issue was discovered in the Linux kernel before 4.8. Incorrect access checking in overlayfs mounts could be used by local attackers to modify or truncate files in the underlying filesystem.

Published: 2018-09-21Modified: 2024-11-21
CVSS 2.0MEDIUM 4.9
CVSS:2.0/AV:L/AC:L/Au:N/C:N/I:C/A:N
CVSS 3.xMEDIUM 5.5
CVSS:3.x/CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
References
CVE-2019-11190
MEDIUM4.7

The Linux kernel before 4.8 allows local users to bypass ASLR on setuid programs (such as /bin/su) because install_exec_creds() is called too late in load_elf_binary() in fs/binfmt_elf.c, and thus the ptrace_may_access() check has a race condition when reading /proc/pid/stat.

Published: 2019-04-12Modified: 2024-11-21
CVSS 2.0MEDIUM 4.7
CVSS:2.0/AV:L/AC:M/Au:N/C:C/I:N/A:N
CVSS 3.xMEDIUM 4.7
CVSS:3.x/CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References
CVE-2019-3901
MEDIUM4.7

A race condition in perf_event_open() allows local attackers to leak sensitive data from setuid programs. As no relevant locks (in particular the cred_guard_mutex) are held during the ptrace_may_access() call, it is possible for the specified target task to perform an execve() syscall with setuid execution before perf_event_alloc() actually attaches to it, allowing an attacker to bypass the ptrace_may_access() check and the perf_event_exit_task(current) call that is performed in install_exec_creds() during privileged execve() calls. This issue affects kernel versions before 4.8.

Published: 2019-04-22Modified: 2024-11-21
CVSS 2.0LOW 1.9
CVSS:2.0/AV:L/AC:M/Au:N/C:P/I:N/A:N
CVSS 3.xMEDIUM 4.7
CVSS:3.x/CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
References