rhsa-2013_0522
Vulnerability from csaf_redhat
Published
2013-02-20 16:20
Modified
2024-11-22 05:53
Summary
Red Hat Security Advisory: gdb security and bug fix update
Notes
Topic
Updated gdb packages that fix one security issue and three bugs are now
available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having moderate
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
Details
The GNU Debugger (GDB) allows debugging of programs written in C, C++,
Java, and other languages by executing them in a controlled fashion and
then printing out their data.
GDB tried to auto-load certain files (such as GDB scripts, Python scripts,
and a thread debugging library) from the current working directory when
debugging programs. This could result in the execution of arbitrary code
with the user's privileges when GDB was run in a directory that has
untrusted content. (CVE-2011-4355)
With this update, GDB no longer auto-loads files from the current directory
and only trusts certain system directories by default. The list of trusted
directories can be viewed and modified using the "show auto-load safe-path"
and "set auto-load safe-path" GDB commands. Refer to the GDB manual, linked
to in the References, for further information.
This update also fixes the following bugs:
* When a struct member was at an offset greater than 256 MB, the resulting
bit position within the struct overflowed and caused an invalid memory
access by GDB. With this update, the code has been modified to ensure that
GDB can access such positions. (BZ#795424)
* When a thread list of the core file became corrupted, GDB did not print
this list but displayed the "Cannot find new threads: generic error" error
message instead. With this update, GDB has been modified and it now prints
the thread list of the core file as expected. (BZ#811648)
* GDB did not properly handle debugging of multiple binaries with the
same build ID. This update modifies GDB to use symbolic links created for
particular binaries so that debugging of binaries that share a build ID
now proceeds as expected. Debugging of live programs and core files is
now more user-friendly. (BZ#836966)
All users of gdb are advised to upgrade to these updated packages, which
contain backported patches to correct 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.
{ "document": { "aggregate_severity": { "namespace": "https://access.redhat.com/security/updates/classification/", "text": "Moderate" }, "category": "csaf_security_advisory", "csaf_version": "2.0", "distribution": { "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "summary", "text": "Updated gdb packages that fix one security issue and three bugs are now\navailable for Red Hat Enterprise Linux 6.\n\nThe Red Hat Security Response Team has rated this update as having moderate\nsecurity impact. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available from the CVE link in\nthe References section.", "title": "Topic" }, { "category": "general", "text": "The GNU Debugger (GDB) allows debugging of programs written in C, C++,\nJava, and other languages by executing them in a controlled fashion and\nthen printing out their data.\n\nGDB tried to auto-load certain files (such as GDB scripts, Python scripts,\nand a thread debugging library) from the current working directory when\ndebugging programs. This could result in the execution of arbitrary code\nwith the user\u0027s privileges when GDB was run in a directory that has\nuntrusted content. (CVE-2011-4355)\n\nWith this update, GDB no longer auto-loads files from the current directory\nand only trusts certain system directories by default. The list of trusted\ndirectories can be viewed and modified using the \"show auto-load safe-path\"\nand \"set auto-load safe-path\" GDB commands. Refer to the GDB manual, linked\nto in the References, for further information.\n\nThis update also fixes the following bugs:\n\n* When a struct member was at an offset greater than 256 MB, the resulting\nbit position within the struct overflowed and caused an invalid memory\naccess by GDB. With this update, the code has been modified to ensure that\nGDB can access such positions. (BZ#795424)\n\n* When a thread list of the core file became corrupted, GDB did not print\nthis list but displayed the \"Cannot find new threads: generic error\" error\nmessage instead. With this update, GDB has been modified and it now prints\nthe thread list of the core file as expected. (BZ#811648)\n\n* GDB did not properly handle debugging of multiple binaries with the\nsame build ID. This update modifies GDB to use symbolic links created for\nparticular binaries so that debugging of binaries that share a build ID\nnow proceeds as expected. Debugging of live programs and core files is\nnow more user-friendly. (BZ#836966)\n\nAll users of gdb are advised to upgrade to these updated packages, which\ncontain backported patches to correct these issues.", "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" } ], "publisher": { "category": "vendor", "contact_details": "https://access.redhat.com/security/team/contact/", "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.", "name": "Red Hat Product Security", "namespace": "https://www.redhat.com" }, "references": [ { "category": "self", "summary": "https://access.redhat.com/errata/RHSA-2013:0522", "url": "https://access.redhat.com/errata/RHSA-2013:0522" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "http://sourceware.org/gdb/current/onlinedocs/gdb/Auto_002dloading-safe-path.html#Auto_002dloading-safe-path", "url": "http://sourceware.org/gdb/current/onlinedocs/gdb/Auto_002dloading-safe-path.html#Auto_002dloading-safe-path" }, { "category": "external", "summary": "http://sourceware.org/gdb/current/onlinedocs/gdb/Auto_002dloading.html#Auto_002dloading", "url": "http://sourceware.org/gdb/current/onlinedocs/gdb/Auto_002dloading.html#Auto_002dloading" }, { "category": "external", "summary": "703238", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=703238" }, { "category": "external", "summary": "811648", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=811648" }, { "category": "external", "summary": "836966", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=836966" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2013/rhsa-2013_0522.json" } ], "title": "Red Hat Security Advisory: gdb security and bug fix update", "tracking": { "current_release_date": "2024-11-22T05:53:42+00:00", "generator": { "date": 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}, { "category": "summary", "text": "gdb: object file .debug_gdb_scripts section improper input validation", "title": "Vulnerability summary" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "6Client:gdb-0:7.2-60.el6.i686", "6Client:gdb-0:7.2-60.el6.ppc64", "6Client:gdb-0:7.2-60.el6.s390x", "6Client:gdb-0:7.2-60.el6.src", "6Client:gdb-0:7.2-60.el6.x86_64", "6Client:gdb-debuginfo-0:7.2-60.el6.i686", "6Client:gdb-debuginfo-0:7.2-60.el6.ppc64", "6Client:gdb-debuginfo-0:7.2-60.el6.s390x", "6Client:gdb-debuginfo-0:7.2-60.el6.x86_64", "6Client:gdb-gdbserver-0:7.2-60.el6.i686", "6Client:gdb-gdbserver-0:7.2-60.el6.ppc64", "6Client:gdb-gdbserver-0:7.2-60.el6.s390x", "6Client:gdb-gdbserver-0:7.2-60.el6.x86_64", 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"6Server:gdb-0:7.2-60.el6.i686", "6Server:gdb-0:7.2-60.el6.ppc64", "6Server:gdb-0:7.2-60.el6.s390x", "6Server:gdb-0:7.2-60.el6.src", "6Server:gdb-0:7.2-60.el6.x86_64", "6Server:gdb-debuginfo-0:7.2-60.el6.i686", "6Server:gdb-debuginfo-0:7.2-60.el6.ppc64", "6Server:gdb-debuginfo-0:7.2-60.el6.s390x", "6Server:gdb-debuginfo-0:7.2-60.el6.x86_64", "6Server:gdb-gdbserver-0:7.2-60.el6.i686", "6Server:gdb-gdbserver-0:7.2-60.el6.ppc64", "6Server:gdb-gdbserver-0:7.2-60.el6.s390x", "6Server:gdb-gdbserver-0:7.2-60.el6.x86_64", "6Workstation:gdb-0:7.2-60.el6.i686", "6Workstation:gdb-0:7.2-60.el6.ppc64", "6Workstation:gdb-0:7.2-60.el6.s390x", "6Workstation:gdb-0:7.2-60.el6.src", "6Workstation:gdb-0:7.2-60.el6.x86_64", "6Workstation:gdb-debuginfo-0:7.2-60.el6.i686", "6Workstation:gdb-debuginfo-0:7.2-60.el6.ppc64", "6Workstation:gdb-debuginfo-0:7.2-60.el6.s390x", "6Workstation:gdb-debuginfo-0:7.2-60.el6.x86_64", "6Workstation:gdb-gdbserver-0:7.2-60.el6.i686", "6Workstation:gdb-gdbserver-0:7.2-60.el6.ppc64", "6Workstation:gdb-gdbserver-0:7.2-60.el6.s390x", "6Workstation:gdb-gdbserver-0:7.2-60.el6.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "gdb: object file .debug_gdb_scripts section improper input validation" } ] }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- 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.