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| From: | Kurt Lieber <klieber@g.o> |
|---|---|
| To: | gentoo-announce@l.g.o |
| Cc: | bugtraq@×××××××××××××.com, full-disclosure@××××××××××××.com, security-alerts@×××××××××××××.com |
| Subject: | [gentoo-announce] [ GLSA 200406-06 ] CVS: additional DoS and arbitrary code execution vulnerabilities |
| Date: | Thu, 10 Jun 2004 19:56:15 |
| Message-Id: | 20040610195625.GU9639@mail.lieber.org |
| 1 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 2 | Gentoo Linux Security Advisory GLSA 200406-06 |
| 3 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 4 | http://security.gentoo.org/ |
| 5 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 6 | |
| 7 | Severity: High |
| 8 | Title: CVS: additional DoS and arbitrary code execution |
| 9 | vulnerabilities |
| 10 | Date: June 10, 2004 |
| 11 | Bugs: #53408 |
| 12 | ID: 200406-06 |
| 13 | |
| 14 | - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| 15 | |
| 16 | Synopsis |
| 17 | ======== |
| 18 | |
| 19 | Several serious new vulnerabilities have been found in CVS, which may |
| 20 | allow an attacker to remotely compromise a CVS server. |
| 21 | |
| 22 | Background |
| 23 | ========== |
| 24 | |
| 25 | CVS (Concurrent Versions System) is an open-source network-transparent |
| 26 | version control system. It contains both a client utility and a server. |
| 27 | |
| 28 | Affected packages |
| 29 | ================= |
| 30 | |
| 31 | ------------------------------------------------------------------- |
| 32 | Package / Vulnerable / Unaffected |
| 33 | ------------------------------------------------------------------- |
| 34 | 1 dev-util/cvs <= 1.11.16-r1 >= 1.11.17 |
| 35 | |
| 36 | Description |
| 37 | =========== |
| 38 | |
| 39 | A team audit of the CVS source code performed by Stefan Esser and |
| 40 | Sebastian Krahmer resulted in the discovery of several remotely |
| 41 | exploitable vulnerabilities including: |
| 42 | |
| 43 | * no-null-termination of "Entry" lines |
| 44 | |
| 45 | * error_prog_name "double-free()" |
| 46 | |
| 47 | * Argument integer overflow |
| 48 | |
| 49 | * serve_notify() out of bounds writes |
| 50 | |
| 51 | Impact |
| 52 | ====== |
| 53 | |
| 54 | An attacker could use these vulnerabilities to cause a Denial of |
| 55 | Service or execute arbitrary code with the permissions of the user |
| 56 | running cvs. |
| 57 | |
| 58 | Workaround |
| 59 | ========== |
| 60 | |
| 61 | There is no known workaround at this time. All users are advised to |
| 62 | upgrade to the latest available version of CVS. |
| 63 | |
| 64 | Resolution |
| 65 | ========== |
| 66 | |
| 67 | All CVS users should upgrade to the latest stable version: |
| 68 | |
| 69 | # emerge sync |
| 70 | |
| 71 | # emerge -pv ">=dev-util/cvs-1.11.17" |
| 72 | # emerge ">=dev-util/cvs-1.11.17" |
| 73 | |
| 74 | References |
| 75 | ========== |
| 76 | |
| 77 | [ 1 ] E-matters Advisory 09/2004 |
| 78 | http://security.e-matters.de/advisories/092004.html |
| 79 | [ 2 ] CAN-2004-0414 |
| 80 | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0414 |
| 81 | [ 3 ] CAN-2004-0416 |
| 82 | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0416 |
| 83 | [ 4 ] CAN-2004-0417 |
| 84 | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0417 |
| 85 | [ 5 ] CAN-2004-0418 |
| 86 | http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0418 |
| 87 | |
| 88 | Availability |
| 89 | ============ |
| 90 | |
| 91 | This GLSA and any updates to it are available for viewing at |
| 92 | the Gentoo Security Website: |
| 93 | |
| 94 | http://security.gentoo.org/glsa/glsa-200406-06.xml |
| 95 | |
| 96 | Concerns? |
| 97 | ========= |
| 98 | |
| 99 | Security is a primary focus of Gentoo Linux and ensuring the |
| 100 | confidentiality and security of our users machines is of utmost |
| 101 | importance to us. Any security concerns should be addressed to |
| 102 | security@g.o or alternatively, you may file a bug at |
| 103 | http://bugs.gentoo.org. |
| 104 | |
| 105 | License |
| 106 | ======= |
| 107 | |
| 108 | Copyright 2004 Gentoo Technologies, Inc; referenced text |
| 109 | belongs to its owner(s). |
| 110 | |
| 111 | The contents of this document are licensed under the |
| 112 | Creative Commons - Attribution / Share Alike license. |
| 113 | |
| 114 | http://creativecommons.org/licenses/by-sa/1.0 |