RHSA-2003:036
Vulnerability from csaf_redhat - Published: 2003-04-08 12:16 - Updated: 2025-11-21 17:25Summary
Red Hat Security Advisory: : : : Updated mgetty packages available
Notes
Topic
Updated mgetty packages are now available for Red Hat Linux 7.1,
7.2, 7.3, and 8.0. These updates close a possible buffer overflow and a
permissions problem present in versions of mgetty prior to version 1.1.29.
[Updated 16 April 2003]
Added packages for Red Hat Linux on IBM iSeries and pSeries systems.
Details
mgetty is a getty replacement for use with data and fax modems.
mgetty can be configured to run an external program to decide whether or
not to answer an incoming call based on Caller ID information. Unpatched
versions of mgetty prior to 1.1.29 would overflow an internal buffer if the
caller name reported by the modem was too long.
Additionally, the faxspool script supplied with versions of mgetty prior to
1.1.29 used a simple permissions scheme to allow or deny fax transmission
privileges. This scheme was easily circumvented because the spooling
directory used for outgoing faxes was world-writable.
All users of mgetty should upgrade to these errata packages, which
contain mgetty 1.1.30 and are not vulnerable to these issues.
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": "Updated mgetty packages are now available for Red Hat Linux 7.1,\n7.2, 7.3, and 8.0. These updates close a possible buffer overflow and a\npermissions problem present in versions of mgetty prior to version 1.1.29.\n\n[Updated 16 April 2003]\nAdded packages for Red Hat Linux on IBM iSeries and pSeries systems.",
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"text": "mgetty is a getty replacement for use with data and fax modems.\n\nmgetty can be configured to run an external program to decide whether or\nnot to answer an incoming call based on Caller ID information. Unpatched\nversions of mgetty prior to 1.1.29 would overflow an internal buffer if the\ncaller name reported by the modem was too long.\n\nAdditionally, the faxspool script supplied with versions of mgetty prior to\n1.1.29 used a simple permissions scheme to allow or deny fax transmission\nprivileges. This scheme was easily circumvented because the spooling\ndirectory used for outgoing faxes was world-writable.\n\nAll users of mgetty should upgrade to these errata packages, which\ncontain mgetty 1.1.30 and are not vulnerable to these issues.",
"title": "Details"
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"title": "Red Hat Security Advisory: : : : Updated mgetty packages available",
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"notes": [
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"category": "description",
"text": "Buffer overflow in cnd-program for mgetty before 1.1.29 allows remote attackers to cause a denial of service and possibly execute arbitrary code via a Caller ID string with a long CallerName argument.",
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"date": "2003-04-08T12:16:00+00:00",
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"date": "2003-04-08T12:16:00+00:00",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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