| CVE-2023-6660 |
BDSA-2023-3449 |
Medium |
Dec 13, 2023 |
When a program running on an affected system appends data to a file via an NFS client mount, the bug can cause the NFS client to fail to copy in the da
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When a program running on an affected system appends data to a file via an NFS client mount, the bug can cause the NFS client to fail to copy in the data to be written but proceed as though the copy operation had succeeded. This means that the data to be written is instead replaced with whatever data had been in the packet buffer previously. Thus, an unprivileged user with access to an affected system may abuse the bug to trigger disclosure of sensitive information. In particular, the leak is limited to data previously stored in mbufs, which are used for network transmission and reception, and for certain types of inter-process communication.
The bug can also be triggered unintentionally by system applications, in which case the data written by the application to an NFS mount may be corrupted. Corrupted data is written over the network to the NFS server, and thus also susceptible to being snooped by other hosts on the network.
Note that the bug exists only in the NFS client; the version and implementation of the server has no effect on whether a given system is affected by the problem.
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14.0.0
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| CVE-2023-6534 |
BDSA-2023-3451 |
High |
Dec 13, 2023 |
In versions of FreeBSD 14.0-RELEASE before 14-RELEASE-p2, FreeBSD 13.2-RELEASE before 13.2-RELEASE-p7 and FreeBSD 12.4-RELEASE before 12.4-RELEASE-p9,
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In versions of FreeBSD 14.0-RELEASE before 14-RELEASE-p2, FreeBSD 13.2-RELEASE before 13.2-RELEASE-p7 and FreeBSD 12.4-RELEASE before 12.4-RELEASE-p9, the pf(4) packet filter incorrectly validates TCP sequence numbers. This could allow a malicious actor to execute a denial-of-service attack against hosts behind the firewall.
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14.0.0, 12.4
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| CVE-2020-10566 |
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High |
Mar 14, 2020 |
grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, mishandles font loading by a guest through a grub2.cfg file, leading to a buff
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grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, mishandles font loading by a guest through a grub2.cfg file, leading to a buffer overflow.
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14.0.0, 12.4, 13.1, 12.3, 13.0, 12.2, 11.4, 12.1, 11.3, 12.0
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| CVE-2020-10565 |
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High |
Mar 14, 2020 |
grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or w
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grub2-bhyve, as used in FreeBSD bhyve before revision 525916 2020-02-12, does not validate the address provided as part of a memrw command (read_* or write_*) by a guest through a grub2.cfg file. This allows an untrusted guest to perform arbitrary read or write operations in the context of the grub-bhyve process, resulting in code execution as root on the host OS.
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14.0.0, 12.4, 13.1, 12.3, 13.0, 12.2, 11.4, 12.1, 11.3, 12.0
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