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Wed, 10 Aug 2022 10:20:21 GMT (envelope-from git) Date: Wed, 10 Aug 2022 10:20:21 GMT Message-Id: <202208101020.27AAKLPe002774@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: 3049b8ef2566 - main - security/vuxml: add FreeBSD SA-22:12.lib9p List-Id: Commits to the main branch of the FreeBSD ports repository List-Archive: https://lists.freebsd.org/archives/dev-commits-ports-main List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-ports-main@freebsd.org X-BeenThere: dev-commits-ports-main@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: 3049b8ef25667a3ebca33a27c3ac6cd89b316922 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; 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mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by philip: URL: https://cgit.FreeBSD.org/ports/commit/?id=3049b8ef25667a3ebca33a27c3ac6cd89b316922 commit 3049b8ef25667a3ebca33a27c3ac6cd89b316922 Author: Philip Paeps AuthorDate: 2022-08-10 10:20:08 +0000 Commit: Philip Paeps CommitDate: 2022-08-10 10:20:08 +0000 security/vuxml: add FreeBSD SA-22:12.lib9p --- security/vuxml/vuln-2022.xml | 33 +++++++++++++++++++++++++++++++++ 1 file changed, 33 insertions(+) diff --git a/security/vuxml/vuln-2022.xml b/security/vuxml/vuln-2022.xml index ff2f2cda3e65..dca51b4d8182 100644 --- a/security/vuxml/vuln-2022.xml +++ b/security/vuxml/vuln-2022.xml @@ -1,3 +1,36 @@ + + FreeBSD -- Missing bounds check in 9p message handling + + + FreeBSD + 13.113.1_1 + 13.013.0_12 + + + + +

Problem Description:

+

The implementation of lib9p's handling of RWALK messages was + missing a bounds check needed when unpacking the message contents. + The missing check means that the receipt of a specially crafted + message will cause lib9p to overwrite unrelated memory.

+

Impact:

+

The bug can be triggered by a malicious bhyve guest kernel to + overwrite memory in the bhyve(8) process. This could potentially lead + to user-mode code execution on the host, subject to bhyve's Capsicum + sandbox.

+ + + + CVE-2022-23092 + SA-22:12.lib9p + + + 2022-08-09 + 2022-08-10 + + + FreeBSD -- Memory disclosure by stale virtual memory mapping