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CVE-2010-2693

Status Candidate

Overview

FreeBSD 7.1 through 8.1-PRERELEASE does not copy the read-only flag when creating a duplicate mbuf buffer reference, which allows local users to cause a denial of service (system file corruption) and gain privileges via the sendfile system call.

Related Files

FreeBSD Security Advisory - mbuf Flag Data Corruption
Posted Jul 14, 2010
Site security.freebsd.org

FreeBSD Security Advisory - The read-only flag is not correctly copied when a mbuf buffer reference is duplicated. When the sendfile system call is used to transmit data over the loopback interface, this can result in the backing pages for the transmitted file being modified, causing data corruption.

tags | advisory
systems | freebsd
advisories | CVE-2010-2693
SHA-256 | 1cb43d905348fc529e8212502e333a97b8d04c11740c9ca8318f6c238b0a023e
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