openSUSE Security Update : libseccomp (openSUSE-2019-2280)

This update for libseccomp fixes the following issues : Security issues fixed : - CVE-2019-9893: An incorrect generation of syscall filters in libseccomp was fixed bsc1128828 libseccomp was updated to new upstream release 2.4.1 : - Fix a BPF generation bug where the optimizer mistakenly identifie...

Security update for libseccomp (moderate)

openSUSE Security Update: Security update for libseccomp Announcement ID: openSUSE-SU-2019:2283-1 Rating: moderate References: 1082318 1128828 1142614 Cross-References: CVE-2019-9893 Affected Products: openSUSE Leap 15.1 An update that solves one vulnerability and has two fixes is now available...

LKM rootkit в современных Linux

В этой статье мы научимся собирать LKM-rootkit под современные ядра Linux, не смотря на то, что многие пишут, что это неактуально. Попробую опровергнуть это. В данной статье использованны вещи, доступные в паблике и некоторые мои наработки. Руткиты подразделяют на ядерные уровня ядра и неядерные...

Linux Kernel审计系统audit_syscall_entry()系统调用绕过安全限制漏洞

BUGTRAQ ID: 33951 Linux Kernel是开放源码操作系统Linux所使用的内核。 Syscall过滤技术通常基于由编号确定的syscall或具体参数来确认是否允许执行调用。在通过编号确定syscall时，64位Linux内核（x8664）上syscall编号可能既映射到32位又映射到64位的syscall表，而这两种syscall表是不同的。由于用户空间进程是由 syscall表控制的，因此可以绕过syscall编号检查，执行非授权操作。 例如，syscall过滤技术可能在监控64位进程，且配置为允许常见的open syscall的子集，在64位平台上为syscal...

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Array index error in arch/mips/kernel/scall64-o32.S in the Linux kernel before 2.6.28-rc8 on 64-bit MIPS platforms allows local users to cause a denial of service system crash via an o32 syscall with a small syscall number, which leads to an attempted read operation outside the bounds of the...

CVE-2008-5701

Array index error in arch/mips/kernel/scall64-o32.S in the Linux kernel before 2.6.28-rc8 on 64-bit MIPS platforms allows local users to cause a denial of service system crash via an o32 syscall with a small syscall number, which leads to an attempted read operation outside the bounds of the...

CVE-2008-5701

Array index error in arch/mips/kernel/scall64-o32.S in the Linux kernel before 2.6.28-rc8 on 64-bit MIPS platforms allows local users to cause a denial of service system crash via an o32 syscall with a small syscall number, which leads to an attempted read operation outside the bounds of the...