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Wed, 13 Dec 2023 06:24:37 GMT (envelope-from git) Date: Wed, 13 Dec 2023 06:24:37 GMT Message-Id: <202312130624.3BD6Ob46010868@gitrepo.freebsd.org> To: ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-main@FreeBSD.org From: Philip Paeps Subject: git: 8175693fe6ba - main - security/vuxml: add FreeBSD SA released on 2023-12-12 List-Id: Commit messages for all branches of the ports repository List-Archive: https://lists.freebsd.org/archives/dev-commits-ports-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-ports-all@freebsd.org X-BeenThere: dev-commits-ports-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: philip X-Git-Repository: ports X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 8175693fe6ba849962fc720cda648f32842f3852 Auto-Submitted: auto-generated The branch main has been updated by philip: URL: https://cgit.FreeBSD.org/ports/commit/?id=8175693fe6ba849962fc720cda648f32842f3852 commit 8175693fe6ba849962fc720cda648f32842f3852 Author: Philip Paeps AuthorDate: 2023-12-13 06:23:15 +0000 Commit: Philip Paeps CommitDate: 2023-12-13 06:23:15 +0000 security/vuxml: add FreeBSD SA released on 2023-12-12 FreeBSD-SA-23:18.nfsclient affects FreeBSD 14.0 and 13.2. --- security/vuxml/vuln/2023.xml | 51 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/security/vuxml/vuln/2023.xml b/security/vuxml/vuln/2023.xml index fd14cd7d623f..3945aadcb2bf 100644 --- a/security/vuxml/vuln/2023.xml +++ b/security/vuxml/vuln/2023.xml @@ -1,3 +1,54 @@ + + FreeBSD -- NFS client data corruption and kernel memory disclosure + + + FreeBSD-kernel + 14.014.0_3 + 13.213.2_8 + + + + +

Problem Description:

+

In FreeBSD 13.2 and 14.0, the NFS client was optimized to improve + the performance of IO_APPEND writes, that is, writes which add data + to the end of a file and so extend its size. This uncovered an old + bug in some routines which copy userspace data into the kernel. + The bug also affects the NFS client's implementation of direct I/O; + however, this implementation is disabled by default by the + vfs.nfs.nfs_directio_enable sysctl and is only used to handle + synchronous writes.

+

Impact:

+

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.

+ + + + CVE-2023-6660 + SA-23:18.nfsclient + + + 2023-12-12 + 2023-12-13 + + + xorg-server -- Multiple vulnerabilities