CVE-2023-4207

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. When fwchange is called on an existing filter, the whole tcfresult struct is always copied into the new instance of the filter. This causes a problem when updati...

CVE-2023-4128

A use-after-free flaw was found in net/sched/clsfw.c in classifiers clsfw, clsu32, and clsroute in the Linux Kernel. This flaw allows a local attacker to perform a local privilege escalation due to incorrect handling of the existing filter, leading to a kernel information leak issue. Bugs Notes...

CVE-2023-3995

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority because it is a duplicate of CVE-2023-4147...

CVE-2023-3776

A use-after-free vulnerability in the Linux kernel's net/sched: clsfw component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, fwsetparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker ca...

CVE-2023-3609

A use-after-free vulnerability in the Linux kernel's net/sched: clsu32 component can be exploited to achieve local privilege escalation. If tcfchangeindev fails, u32setparms will immediately return an error after incrementing or decrementing the reference counter in tcfbindfilter. If an attacker...

CVE-2020-36694

A use-after-free flaw was found in the packet processing context in net/netfilter/xtables.c in netfilter in the Linux Kernel. This issue occurs when the per-CPU sequence count is mishandled during concurrent iptables rules replacement and can be exploited with the CAPNETADMIN capability in an...

CVE-2023-30549

Apptainer is an open source container platform for Linux. There is an ext4 use-after-free flaw that is exploitable through versions of Apptainer 1.1.0 and installations that include apptainer-suid 1.1.8 on older operating systems where that CVE has not been patched. That includes Red Hat Enterpri...

CBL Mariner 2.0 Security Update: kernel (CVE-2022-1055)

The version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2022-1055 advisory. - A use-after-free exists in the Linux Kernel in tcnewtfilter that could allow a local attacker to gain privile...

K54635192: Linux kernel overlayfs vulnerability CVE-2021-3493

Security Advisory Description The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the...

SUSE CVE-2014-5206

The doremount function in fs/namespace.c in the Linux kernel through 3.16.1 does not maintain the MNTLOCKREADONLY bit across a remount of a bind mount, which allows local users to bypass an intended read-only restriction and defeat certain sandbox protection mechanisms via a "mount -o remount"...

SUSE CVE-2014-5207

fs/namespace.c in the Linux kernel through 3.16.1 does not properly restrict clearing MNTNODEV, MNTNOSUID, and MNTNOEXEC and changing MNTATIMEMASK during a remount of a bind mount, which allows local users to gain privileges, interfere with backups and auditing on systems that had atime enabled, ...

SUSE CVE-2014-9717

fs/namespace.c in the Linux kernel before 4.0.2 processes MNTDETACH umount2 system calls without verifying that the MNTLOCKED flag is unset, which allows local users to bypass intended access restrictions and navigate to filesystem locations beneath a mount by calling umount2 within a user...

SUSE CVE-2017-1000111

Linux kernel: heap out-of-bounds in AFPACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packetsetring. Previously with PACKETVERSION. This time with PACKETRESERVE. The solution...

SUSE CVE-2018-6559

The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace...

SUSE CVE-2018-18955

In the Linux kernel 4.15.x through 4.19.x before 4.19.2, mapwrite in kernel/usernamespace.c allows privilege escalation because it mishandles nested user namespaces with more than 5 UID or GID ranges. A user who has CAPSYSADMIN in an affected user namespace can bypass access controls on resources...

SUSE CVE-2019-20794

An issue was discovered in the Linux kernel 4.18 through 5.6.11 when unprivileged user namespaces are allowed. A user can create their own PID namespace, and mount a FUSE filesystem. Upon interaction with this FUSE filesystem, if the userspace component is terminated via a kill of the PID...

SUSE CVE-2020-5291

Bubblewrap bwrap before version 0.4.1, if installed in setuid mode and the kernel supports unprivileged user namespaces, then the bwrap --userns2 option can be used to make the setuid process keep running as root while being traceable. This can in turn be used to gain root permissions. Note that...

SUSE CVE-2020-16120

Overlayfs did not properly perform permission checking when copying up files in an overlayfs and could be exploited from within a user namespace, if, for example, unprivileged user namespaces were allowed. It was possible to have a file not readable by an unprivileged user to be copied to a...

SUSE CVE-2021-3493

The overlayfs implementation in the linux kernel did not properly validate with respect to user namespaces the setting of file capabilities on files in an underlying file system. Due to the combination of unprivileged user namespaces along with a patch carried in the Ubuntu kernel to allow...

SUSE CVE-2022-32250

net/netfilter/nftablesapi.c in the Linux kernel through 5.18.1 allows a local user able to create user/net namespaces to escalate privileges to root because an incorrect NFTSTATEFULEXPR check leads to a use-after-free...