Security Vulnerabilities
- CVEs Published In February 2024
A user-provided integer option was passed to nmreq_copyin() without checking if it would overflow. This insufficient bounds checking could lead to kernel memory corruption.
On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.
Handlers for *_CFG_PAGE read / write ioctls in the mpr, mps, and mpt drivers allocated a buffer of a caller-specified size, but copied to it a fixed size header. Other heap content would be overwritten if the specified size was too small.
Users with access to the mpr, mps or mpt device node may overwrite heap data, potentially resulting in privilege escalation. Note that the device node is only accessible to root and members of the operator group.
The e1000 network adapters permit a variety of modifications to an Ethernet packet when it is being transmitted. These include the insertion of IP and TCP checksums, insertion of an Ethernet VLAN header, and TCP segmentation offload ("TSO"). The e1000 device model uses an on-stack buffer to generate the modified packet header when simulating these modifications on transmitted packets.
When checksum offload is requested for a transmitted packet, the e1000 device model used a guest-provided value to specify the checksum offset in the on-stack buffer. The offset was not validated for certain packet types.
A misbehaving bhyve guest could overwrite memory in the bhyve process on the host, possibly leading to code execution in the host context.
The bhyve process runs in a Capsicum sandbox, which (depending on the FreeBSD version and bhyve configuration) limits the impact of exploiting this issue.
The 802.11 beacon handling routine failed to validate the length of an IEEE 802.11s Mesh ID before copying it to a heap-allocated buffer.
While a FreeBSD Wi-Fi client is in scanning mode (i.e., not associated with a SSID) a malicious beacon frame may overwrite kernel memory, leading to remote code execution.
When dumping core and saving process information, proc_getargv() might return an sbuf which have a sbuf_len() of 0 or -1, which is not properly handled.
An out-of-bound read can happen when user constructs a specially crafted ps_string, which in turn can cause the kernel to crash.
The total size of the user-provided nmreq to nmreq_copyin() was first computed and then trusted during the copyin. This time-of-check to time-of-use bug could lead to kernel memory corruption.
On systems configured to include netmap in their devfs_ruleset, a privileged process running in a jail can affect the host environment.
The functionality for file download in HGiga OAKlouds' certain modules contains an Arbitrary File Read and Delete vulnerability. Attackers can put file path in specific request parameters, allowing them to download the file without login. Furthermore, the file will be deleted after being downloaded.
EBM Technologies Uniweb/SoliPACS WebServer's query functionality lacks proper restrictions of user input, allowing remote attackers authenticated as regular user to inject SQL commands for reading, modifying, and deleting database records, as well as executing system commands. Attackers may even leverage the dbo privilege in the database for privilege escalation, elevating their privileges to administrator .
EBM Technologies RISWEB's specific URL path is not properly controlled by permission, allowing attackers to browse specific pages and query sensitive data without login.
EBM Technologies RISWEB's specific query function parameter does not properly restrict user input, and this feature page is accessible without login. This allows remote attackers to inject SQL commands without authentication, enabling them to read, modify, and delete database records.