Описание
Security update for the Linux Kernel (Live Patch 13 for SLE 15 SP1)
This update for the Linux Kernel 4.12.14-197_48 fixes several issues.
The following security issues were fixed:
- CVE-2020-14381: Fixed a use-after-free in the fast user mutex (futex) wait operation, which could have lead to memory corruption and possibly privilege escalation (bsc#1176011).
- CVE-2020-25212: A TOCTOU mismatch in the NFS client code could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c (bsc#1176381).
- CVE-2020-14386: Fixed a memory corruption which could have lead to an attacker gaining root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity (bsc#1176069).
- CVE-2020-24394: The NFS server code can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support. This occurs because the current umask is not considered (bsc#1175518).
Список пакетов
SUSE Linux Enterprise Live Patching 15 SP1
Ссылки
- Link for SUSE-SU-2020:3190-1
- E-Mail link for SUSE-SU-2020:3190-1
- SUSE Security Ratings
- SUSE Bug 1175992
- SUSE Bug 1176012
- SUSE Bug 1176072
- SUSE Bug 1176382
- SUSE CVE CVE-2020-14381 page
- SUSE CVE CVE-2020-14386 page
- SUSE CVE CVE-2020-24394 page
- SUSE CVE CVE-2020-25212 page
Описание
A flaw was found in the Linux kernel's futex implementation. This flaw allows a local attacker to corrupt system memory or escalate their privileges when creating a futex on a filesystem that is about to be unmounted. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Затронутые продукты
Ссылки
- CVE-2020-14381
- SUSE Bug 1176011
- SUSE Bug 1176012
Описание
A flaw was found in the Linux kernel before 5.9-rc4. Memory corruption can be exploited to gain root privileges from unprivileged processes. The highest threat from this vulnerability is to data confidentiality and integrity.
Затронутые продукты
Ссылки
- CVE-2020-14386
- SUSE Bug 1176069
- SUSE Bug 1176072
Описание
In the Linux kernel before 5.7.8, fs/nfsd/vfs.c (in the NFS server) can set incorrect permissions on new filesystem objects when the filesystem lacks ACL support, aka CID-22cf8419f131. This occurs because the current umask is not considered.
Затронутые продукты
Ссылки
- CVE-2020-24394
- SUSE Bug 1175518
- SUSE Bug 1175992
Описание
A TOCTOU mismatch in the NFS client code in the Linux kernel before 5.8.3 could be used by local attackers to corrupt memory or possibly have unspecified other impact because a size check is in fs/nfs/nfs4proc.c instead of fs/nfs/nfs4xdr.c, aka CID-b4487b935452.
Затронутые продукты
Ссылки
- CVE-2020-25212
- SUSE Bug 1176381
- SUSE Bug 1176382
- SUSE Bug 1177027