rhsa-2003:403
Vulnerability from csaf_redhat
Published
2003-12-16 14:05
Modified
2025-11-21 17:26
Summary
Red Hat Security Advisory: : Updated lftp packages fix security vulnerability
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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"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
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"notes": [
{
"category": "summary",
"text": "Updated lftp packages are now available that fix a buffer overflow\nsecurity vulnerability.",
"title": "Topic"
},
{
"category": "general",
"text": "lftp is a command-line file transfer program supporting FTP and HTTP\nprotocols. \n\nUlf H\u00c3\u0083\u00c2\u00a4rnhammar 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\u00c3\u0083\u00c2\u00a4rnhammar for discovering and alerting us\nto this issue.",
"title": "Details"
},
{
"category": "legal_disclaimer",
"text": "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.",
"title": "Terms of Use"
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"references": [
{
"category": "self",
"summary": "https://access.redhat.com/errata/RHSA-2003:403",
"url": "https://access.redhat.com/errata/RHSA-2003:403"
},
{
"category": "self",
"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2003/rhsa-2003_403.json"
}
],
"title": "Red Hat Security Advisory: : Updated lftp packages fix security vulnerability",
"tracking": {
"current_release_date": "2025-11-21T17:26:46+00:00",
"generator": {
"date": "2025-11-21T17:26:46+00:00",
"engine": {
"name": "Red Hat SDEngine",
"version": "4.6.12"
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},
"id": "RHSA-2003:403",
"initial_release_date": "2003-12-16T14:05:00+00:00",
"revision_history": [
{
"date": "2003-12-16T14:05:00+00:00",
"number": "1",
"summary": "Initial version"
},
{
"date": "2003-12-16T00:00:00+00:00",
"number": "2",
"summary": "Last updated version"
},
{
"date": "2025-11-21T17:26:46+00:00",
"number": "3",
"summary": "Last generated version"
}
],
"status": "final",
"version": "3"
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},
"product_tree": {
"branches": [
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"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Linux 7.2",
"product": {
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},
{
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"product_identification_helper": {
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}
}
},
{
"category": "product_name",
"name": "Red Hat Linux 9",
"product": {
"name": "Red Hat Linux 9",
"product_id": "Red Hat Linux 9",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:linux:9"
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],
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],
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"name": "Red Hat"
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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"
}
],
"product_status": {
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"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2003-0963"
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"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": "2003-12-16T14:05:00+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",
"product_ids": [
"Red Hat Linux 7.2",
"Red Hat Linux 7.3",
"Red Hat Linux 8.0",
"Red Hat Linux 9"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2003:403"
}
],
"threats": [
{
"category": "impact",
"details": "Moderate"
}
],
"title": "security flaw"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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