rhsa-2003:404
Vulnerability from csaf_redhat
Published
2003-12-16 14:06
Modified
2025-11-21 17:26
Summary
Red Hat Security Advisory: lftp security update

Notes

Topic
Updated lftp packages are now available that fix a buffer overflow security vulnerability.
Details
lftp is a command-line file transfer program supporting FTP and HTTP protocols. Ulf Härnhammar discovered a buffer overflow bug in versions of lftp up to and including 2.6.9. An attacker could create a carefully crafted directory on a website such that, if a user connects to that directory using the lftp client and subsequently issues a 'ls' or 'rels' command, the attacker could execute arbitrary code on the users machine. The Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned the name CAN-2003-0963 to this issue. Users of lftp are advised to upgrade to these erratum packages, which contain a backported security patch and are not vulnerable to this issue. Red Hat would like to thank Ulf Härnhammar for discovering and alerting us to this issue.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.


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        "text": "lftp is a command-line file transfer program supporting FTP and HTTP\nprotocols. \n\nUlf H\u00e4rnhammar discovered a buffer overflow bug in versions of lftp up to\nand including 2.6.9.  An attacker could create a carefully crafted\ndirectory on a website such that, if a user connects to that directory\nusing the lftp client and subsequently issues a \u0027ls\u0027 or \u0027rels\u0027 command, the\nattacker could execute arbitrary code on the users machine.  The Common\nVulnerabilities and Exposures project (cve.mitre.org) has assigned the name\nCAN-2003-0963 to this issue.\n\nUsers of lftp are advised to upgrade to these erratum packages, which\ncontain a backported security patch and are not vulnerable to this issue.\n\nRed Hat would like to thank Ulf H\u00e4rnhammar for discovering and alerting us\nto this issue.",
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  },
  "vulnerabilities": [
    {
      "acknowledgments": [
        {
          "names": [
            "Ulf H\u00e4rnhammar"
          ]
        }
      ],
      "cve": "CVE-2003-0963",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "1617106"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "Buffer overflows in (1) try_netscape_proxy and (2) try_squid_eplf for lftp 2.6.9 and earlier allow remote HTTP servers to execute arbitrary code via long directory names that are processed by the ls or rels commands.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "security flaw",
          "title": "Vulnerability summary"
        }
      ],
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      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2003-0963"
        },
        {
          "category": "external",
          "summary": "RHBZ#1617106",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1617106"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2003-0963",
          "url": "https://www.cve.org/CVERecord?id=CVE-2003-0963"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2003-0963",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2003-0963"
        }
      ],
      "release_date": "2003-12-13T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2003-12-16T14:06:00+00:00",
          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nTo update all RPMs for your particular architecture, run:\n\nrpm -Fvh [filenames]\n\nwhere [filenames] is a list of the RPMs you wish to upgrade.  Only those\nRPMs which are currently installed will be updated.  Those RPMs which are\nnot installed but included in the list will not be updated.  Note that you\ncan also use wildcards (*.rpm) if your current directory *only* contains the\ndesired RPMs.\n\nPlease note that this update is also available via Red Hat Network.  Many\npeople find this an easier way to apply updates.  To use Red Hat Network,\nlaunch the Red Hat Update Agent with the following command:\n\nup2date\n\nThis will start an interactive process that will result in the appropriate\nRPMs being upgraded on your system.\n\nIf up2date fails to connect to Red Hat Network due to SSL Certificate \nErrors, you need to install a version of the up2date client with an updated \ncertificate.  The latest version of up2date is available from the Red Hat \nFTP site and may also be downloaded directly from the RHN website:\n\nhttps://rhn.redhat.com/help/latest-up2date.pxt",
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            "3WS:lftp-debuginfo-0:2.6.3-5.x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2003:404"
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "security flaw"
    }
  ]
}


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