3571e53040
patches for easier mirroring, to eliminate a special copy, to make www.freebsd.org/security a full copy of security.freebsd.org and be eventually be the same. For now files are just sitting there. The symlinks are missing. Discussed on: www (repository location) Discussed with: simon (so)
143 lines
5.8 KiB
Text
143 lines
5.8 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA1
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=============================================================================
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FreeBSD-SA-05:05.cvs Security Advisory
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The FreeBSD Project
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Topic: Multiple vulnerabilities in CVS
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Category: contrib
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Module: cvs
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Announced: 2005-04-22
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Credits: Alen Zukich
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Affects: All FreeBSD 4.x releases
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All FreeBSD 5.x releases prior to 5.4-RELEASE
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Corrected: 2005-04-22 18:01:04 UTC (RELENG_5, 5.4-STABLE)
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2005-04-22 18:03:18 UTC (RELENG_5_4, 5.4-RELEASE)
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2005-04-22 18:07:10 UTC (RELENG_5_3, 5.3-RELEASE-p10)
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2005-04-22 18:13:30 UTC (RELENG_4, 4.11-STABLE)
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2005-04-22 18:17:22 UTC (RELENG_4_11, 4.11-RELEASE-p4)
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2005-04-22 18:16:15 UTC (RELENG_4_10, 4.10-RELEASE-p9)
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CVE Name: CAN-2005-0753
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For general information regarding FreeBSD Security Advisories,
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including descriptions of the fields above, security branches, and the
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following sections, please visit
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<URL:http://www.freebsd.org/security/>.
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I. Background
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The Concurrent Versions System (CVS) is a version control system. It
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may be used to access a repository locally, or to access a `remote
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repository' using a number of different methods. When accessing a
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remote repository, the target machine runs the CVS server to fulfill
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client requests.
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II. Problem Description
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Multiple programming errors were found in CVS. In one case, variable
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length strings are copied into a fixed length buffer without adequate
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checks being made; other errors include NULL pointer dereferences,
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possible use of uninitialized variables, and memory leaks.
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III. Impact
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CVS servers ("cvs server" or :pserver: modes) are affected by these
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problems. The buffer overflow may potentially be exploited to execute
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arbitrary code on the CVS server, either in the context of the
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authenticated user or in the context of the CVS server, depending on
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the access method used. The other errors may lead to a denial of
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service.
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IV. Workaround
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No workaround is available for cvs servers; cvs clients are unaffected.
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V. Solution
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Perform one of the following:
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1) Upgrade your vulnerable system to 4-STABLE or 5-STABLE, or to the
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RELENG_5_3, RELENG_4_11, or RELENG_4_10 security branch
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dated after the correction date.
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2) To patch your present system:
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The following patches have been verified to apply to FreeBSD 4.10,
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4.11, and 5.3 systems.
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a) Download the relevant patch from the location below, and verify the
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detached PGP signature using your PGP utility.
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[FreeBSD 4.10]
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# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:05/cvs410.patch
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# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:05/cvs410.patch.asc
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[FreeBSD 4.11 and 5.3]
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# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:05/cvs.patch
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# fetch ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/patches/SA-05:05/cvs.patch.asc
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b) Execute the following commands as root:
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# cd /usr/src
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# patch < /path/to/patch
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# cd /usr/src/gnu/usr.bin/cvs
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# make obj && make depend && make && make install
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VI. Correction details
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The following list contains the revision numbers of each file that was
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corrected in FreeBSD.
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Branch Revision
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Path
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- -------------------------------------------------------------------------
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RELENG_4
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src/contrib/cvs/src/login.c 1.3.2.6
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src/contrib/cvs/src/patch.c 1.1.1.7.2.7
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src/contrib/cvs/src/rcs.c 1.19.2.7
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RELENG_4_11
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src/UPDATING 1.73.2.91.2.5
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src/sys/conf/newvers.sh 1.44.2.39.2.8
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src/contrib/cvs/src/login.c 1.3.2.5.2.1
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src/contrib/cvs/src/patch.c 1.1.1.7.2.6.2.1
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src/contrib/cvs/src/rcs.c 1.19.2.6.2.1
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RELENG_4_10
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src/UPDATING 1.73.2.90.2.10
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src/sys/conf/newvers.sh 1.44.2.34.2.11
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src/contrib/cvs/src/login.c 1.3.2.4.6.1
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src/contrib/cvs/src/patch.c 1.1.1.7.2.5.6.1
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src/contrib/cvs/src/rcs.c 1.19.2.5.6.1
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RELENG_5
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src/contrib/cvs/src/login.c 1.8.2.1
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src/contrib/cvs/src/patch.c 1.1.1.13.2.1
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src/contrib/cvs/src/rcs.c 1.27.2.1
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RELENG_5_4
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src/UPDATING 1.342.2.24.2.4
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src/contrib/cvs/src/login.c 1.8.6.1
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src/contrib/cvs/src/patch.c 1.1.1.13.6.1
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src/contrib/cvs/src/rcs.c 1.27.6.1
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RELENG_5_3
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src/UPDATING 1.342.2.13.2.13
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src/sys/conf/newvers.sh 1.62.2.15.2.15
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src/contrib/cvs/src/login.c 1.8.4.1
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src/contrib/cvs/src/patch.c 1.1.1.13.4.1
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src/contrib/cvs/src/rcs.c 1.27.4.1
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- -------------------------------------------------------------------------
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VII. References
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http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2005-0753
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http://secunia.com/advisories/14976/
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http://xforce.iss.net/xforce/xfdb/20148
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The latest revision of this advisory is available at
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ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-05:05.cvs.asc
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-----END PGP SIGNATURE-----
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