RHSA-2005_261
Vulnerability from csaf_redhat - Published: 2005-04-28 15:16 - Updated: 2024-11-21 23:32Summary
Red Hat Security Advisory: glibc security update
Notes
Topic
Updated glibc packages that address several bugs are now available.
This update has been rated as having low security impact by the Red Hat
Security Response Team.
Details
The GNU libc packages (known as glibc) contain the standard C libraries
used by applications.
Flaws in the catchsegv and glibcbug scripts were discovered. A local user
could utilize these flaws to overwrite files via a symlink attack on
temporary files. The Common Vulnerabilities and Exposures project
(cve.mitre.org) has assigned the name CAN-2004-0968 and CAN-2004-1382 to
these issues.
It was discovered that the use of LD_DEBUG and LD_SHOW_AUXV were not
restricted for a setuid program. A local user could utilize this flaw to
gain information, such as the list of symbols used by the program. The
Common Vulnerabilities and Exposures project (cve.mitre.org) has assigned
the name CAN-2004-1453 to this issue.
This erratum also addresses the following bugs in the GNU C Library:
- Now avoids calling sigaction (SIGPIPE, ...) in syslog implementation
- Fixed poll on Itanium
- Now allows setenv/putenv in shared library constructors
Users of glibc are advised to upgrade to these erratum packages that remove
the unecessary glibcbug script and contain backported patches to correct
these other 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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"category": "summary",
"text": "Updated glibc packages that address several bugs are now available.\n\nThis update has been rated as having low security impact by the Red Hat\nSecurity Response Team.",
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"text": "The GNU libc packages (known as glibc) contain the standard C libraries\nused by applications.\n\nFlaws in the catchsegv and glibcbug scripts were discovered. A local user\ncould utilize these flaws to overwrite files via a symlink attack on\ntemporary files. The Common Vulnerabilities and Exposures project\n(cve.mitre.org) has assigned the name CAN-2004-0968 and CAN-2004-1382 to\nthese issues.\n\nIt was discovered that the use of LD_DEBUG and LD_SHOW_AUXV were not\nrestricted for a setuid program. A local user could utilize this flaw to\ngain information, such as the list of symbols used by the program. The\nCommon Vulnerabilities and Exposures project (cve.mitre.org) has assigned\nthe name CAN-2004-1453 to this issue.\n\nThis erratum also addresses the following bugs in the GNU C Library:\n- Now avoids calling sigaction (SIGPIPE, ...) in syslog implementation\n- Fixed poll on Itanium\n- Now allows setenv/putenv in shared library constructors\n\nUsers of glibc are advised to upgrade to these erratum packages that remove\nthe unecessary glibcbug script and contain backported patches to correct\nthese other issues.",
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"date": "2005-04-28T15:16:00+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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