| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
geneve: require CAP_NET_ADMIN in the device netns for changelink
A tunnel changelink() operates on at most two netns, dev_net(dev) and
the sticky underlay netns geneve->net. They differ once the device is
created in or moved to a netns other than the one the request runs in.
The rtnl changelink path checks CAP_NET_ADMIN only against dev_net(dev),
so a caller privileged there but not in geneve->net can rewrite a geneve
device whose underlay lives in geneve->net.
geneve_changelink() applies the new configuration against geneve->net:
geneve_link_config() and the geneve_quiesce()/geneve_unquiesce() pair
reopen the underlay sockets in that netns (geneve_sock_add() uses
geneve->net), so the same reasoning as the tunnel changelink series
applies here.
Gate geneve_changelink() with rtnl_dev_link_net_capable(), at the top of
the op before any attribute is parsed, matching ipgre_changelink() and
the rest of the "require CAP_NET_ADMIN in the device netns for
changelink" series.
Found by 0sec automated security-research tooling (https://0sec.ai). |
| In the Linux kernel, the following vulnerability has been resolved:
bpf: Support for hardening against JIT spraying
The BPF JIT allocator packs many small programs into larger executable
allocations and reuses space within those allocations as programs are
loaded and freed. When fresh code is written into space that a previous
program occupied, an indirect jump into the new program can reuse a branch
prediction left behind by the old one.
Flush the indirect branch predictors before reusing JIT memory so that
indirect jumps into a newly written program don't reuse predictions from an
old program that occupied the same space.
Introduce bpf_arch_pred_flush_enabled static key and bpf_arch_pred_flush
static call for flushing the branch predictors on JIT memory reuse.
Architectures that need a flush, can update it to a predictor flush
function. By default, its a NOP and does not emit any CALL.
Allocations larger than a pack are not covered by this flush. That is safe
because cBPF programs (the unprivileged attack surface) are bounded well
below a pack size. Issue a warning if this assumption is ever violated
while the flush is active. |
| Active Directory Domain Services Elevation of Privilege Vulnerability |
| Windows Core Shell SI Host Extension Framework for Composable Shell Elevation of Privilege Vulnerability |
| Windows Kernel Elevation of Privilege Vulnerability |
| NTFS Elevation of Privilege Vulnerability |
| Active Directory Domain Services Elevation of Privilege Vulnerability |
| Diagnostics Hub Standard Collector Elevation of Privilege Vulnerability |
| NTFS Elevation of Privilege Vulnerability |
| Windows 10 Update Assistant Elevation of Privilege Vulnerability |
| Visual Studio Code Elevation of Privilege Vulnerability |
| Visual Studio Elevation of Privilege Vulnerability |
| Azure RTOS Elevation of Privilege Vulnerability |
| Azure RTOS Elevation of Privilege Vulnerability |
| Azure RTOS Elevation of Privilege Vulnerability |
| Windows Feedback Hub Elevation of Privilege Vulnerability |
| Windows Fast FAT File System Driver Elevation of Privilege Vulnerability |
| NTFS Elevation of Privilege Vulnerability |
| Credential Security Support Provider Protocol (CredSSP) Elevation of Privilege Vulnerability |
| Windows Desktop Bridge Elevation of Privilege Vulnerability |
