rhsa-2015_2417
Vulnerability from csaf_redhat
Published
2015-11-19 06:23
Modified
2024-11-22 08:54
Summary
Red Hat Security Advisory: autofs security, bug fix and enhancement update
Notes
Topic
Updated autofs packages that fix one security issue, several bugs, and add
one enhancement are now available for Red Hat Enterprise Linux 7.
Red Hat Product Security 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 autofs utility controls the operation of the automount daemon. The
daemon automatically mounts file systems when in use and unmounts them when
they are not busy.
It was found that program-based automounter maps that used interpreted
languages such as Python used standard environment variables to locate
and load modules of those languages. A local attacker could potentially use
this flaw to escalate their privileges on the system. (CVE-2014-8169)
Note: This issue has been fixed by adding the "AUTOFS_" prefix to the
affected environment variables so that they are not used to subvert the
system. A configuration option ("force_standard_program_map_env") to
override this prefix and to use the environment variables without the
prefix has been added. In addition, warnings have been added to the manual
page and to the installed configuration file. Now, by default the standard
variables of the program map are provided only with the prefix added to
its name.
Red Hat would like to thank the Georgia Institute of Technology for
reporting this issue.
Notably, this update fixes the following bugs:
* When the "ls *" command was run in the root of an indirect mount, autofs
attempted to literally mount the wildcard character (*) causing it to be
added to the negative cache. If done before a valid mount, autofs then
failed on further mount attempts inside the mount point, valid or not. This
has been fixed, and wildcard map entries now function in the described
situation. (BZ#1166457)
* When autofs encountered a syntax error consisting of a duplicate entry in
a multimap entry, it reported an error and did not mount the map entry.
With this update, autofs has been amended to report the problem in the log
to alert the system administrator and use the last seen instance of the
duplicate entry rather than fail. (BZ#1205600)
* In the ldap and sss lookup modules, the map reading functions did not
distinguish between the "no entry found" and "service not available"
errors. Consequently, when the "service not available" response was
returned from a master map read, autofs did not update the mounts.
An "entry not found" return does not prevent the map update, so the ldap
and sss lookup modules were updated to distinguish between these two
returns and now work as expected. (BZ#1233065)
In addition, this update adds the following enhancement:
* The description of the configuration parameter map_hash_table_size was
missing from the autofs.conf(5) man page and its description in the
configuration file comments was insufficient. A description of the
parameter has been added to autofs.conf(5), and the configuration file
comments have been updated. (BZ#1238573)
All autofs users are advised to upgrade to these updated packages, which
contain backported patches to correct these issues and add this
enhancement.
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 autofs packages that fix one security issue, several bugs, and add\none enhancement are now available for Red Hat Enterprise Linux 7.\n\nRed Hat Product Security has rated this update as having Moderate security\nimpact. A Common Vulnerability Scoring System (CVSS) base score, which\ngives a detailed severity rating, is available from the CVE link in the\nReferences section.", "title": "Topic" }, { "category": "general", "text": "The autofs utility controls the operation of the automount daemon. The\ndaemon automatically mounts file systems when in use and unmounts them when\nthey are not busy.\n\nIt was found that program-based automounter maps that used interpreted\nlanguages such as Python used standard environment variables to locate\nand load modules of those languages. A local attacker could potentially use\nthis flaw to escalate their privileges on the system. (CVE-2014-8169)\n\nNote: This issue has been fixed by adding the \"AUTOFS_\" prefix to the\naffected environment variables so that they are not used to subvert the\nsystem. A configuration option (\"force_standard_program_map_env\") to\noverride this prefix and to use the environment variables without the\nprefix has been added. In addition, warnings have been added to the manual\npage and to the installed configuration file. Now, by default the standard\nvariables of the program map are provided only with the prefix added to\nits name.\n\nRed Hat would like to thank the Georgia Institute of Technology for\nreporting this issue.\n\nNotably, this update fixes the following bugs:\n\n* When the \"ls *\" command was run in the root of an indirect mount, autofs\nattempted to literally mount the wildcard character (*) causing it to be\nadded to the negative cache. If done before a valid mount, autofs then\nfailed on further mount attempts inside the mount point, valid or not. This\nhas been fixed, and wildcard map entries now function in the described\nsituation. (BZ#1166457)\n\n* When autofs encountered a syntax error consisting of a duplicate entry in\na multimap entry, it reported an error and did not mount the map entry.\nWith this update, autofs has been amended to report the problem in the log\nto alert the system administrator and use the last seen instance of the\nduplicate entry rather than fail. (BZ#1205600)\n\n* In the ldap and sss lookup modules, the map reading functions did not\ndistinguish between the \"no entry found\" and \"service not available\"\nerrors. Consequently, when the \"service not available\" response was\nreturned from a master map read, autofs did not update the mounts.\nAn \"entry not found\" return does not prevent the map update, so the ldap\nand sss lookup modules were updated to distinguish between these two\nreturns and now work as expected. (BZ#1233065)\n\nIn addition, this update adds the following enhancement:\n\n* The description of the configuration parameter map_hash_table_size was\nmissing from the autofs.conf(5) man page and its description in the\nconfiguration file comments was insufficient. A description of the\nparameter has been added to autofs.conf(5), and the configuration file\ncomments have been updated. (BZ#1238573)\n\nAll autofs users are advised to upgrade to these updated packages, which\ncontain backported patches to correct these issues and add this\nenhancement.", "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-2015:2417", "url": "https://access.redhat.com/errata/RHSA-2015:2417" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "1161474", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1161474" }, { "category": "external", "summary": "1166457", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1166457" }, { "category": "external", "summary": "1192565", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1192565" }, { "category": "external", "summary": "1201582", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1201582" }, { "category": "external", "summary": "1218045", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1218045" }, { "category": "external", "summary": "1233067", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1233067" }, { "category": "external", "summary": "1233069", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1233069" }, { "category": "external", "summary": "1263508", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1263508" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2015/rhsa-2015_2417.json" } ], "title": "Red Hat Security Advisory: autofs security, bug fix and enhancement update", "tracking": { 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Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation:autofs-1:5.0.7-54.el7.src" }, "product_reference": "autofs-1:5.0.7-54.el7.src", "relates_to_product_reference": "7Workstation" }, { "category": "default_component_of", "full_product_name": { "name": "autofs-1:5.0.7-54.el7.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation:autofs-1:5.0.7-54.el7.x86_64" }, "product_reference": "autofs-1:5.0.7-54.el7.x86_64", "relates_to_product_reference": "7Workstation" }, { "category": "default_component_of", "full_product_name": { "name": "autofs-debuginfo-1:5.0.7-54.el7.aarch64 as a component of Red Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.aarch64" }, "product_reference": "autofs-debuginfo-1:5.0.7-54.el7.aarch64", "relates_to_product_reference": "7Workstation" }, { "category": "default_component_of", "full_product_name": { "name": "autofs-debuginfo-1:5.0.7-54.el7.ppc64 as a component of Red Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64" }, "product_reference": "autofs-debuginfo-1:5.0.7-54.el7.ppc64", "relates_to_product_reference": "7Workstation" }, { "category": "default_component_of", "full_product_name": { "name": "autofs-debuginfo-1:5.0.7-54.el7.ppc64le as a component of Red Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64le" }, "product_reference": "autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "relates_to_product_reference": "7Workstation" }, { "category": "default_component_of", "full_product_name": { "name": "autofs-debuginfo-1:5.0.7-54.el7.s390x as a component of Red Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.s390x" }, "product_reference": "autofs-debuginfo-1:5.0.7-54.el7.s390x", "relates_to_product_reference": "7Workstation" }, { "category": "default_component_of", "full_product_name": { "name": "autofs-debuginfo-1:5.0.7-54.el7.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.x86_64" }, "product_reference": "autofs-debuginfo-1:5.0.7-54.el7.x86_64", "relates_to_product_reference": "7Workstation" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Georgia Institute" ], "organization": "Technology" } ], "cve": "CVE-2014-8169", "cwe": { "id": "CWE-426", "name": "Untrusted Search Path" }, "discovery_date": "2014-11-04T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1192565" } ], "notes": [ { "category": "description", "text": "It was found that program-based automounter maps that used interpreted languages such as Python would use standard environment variables to locate and load modules of those languages. A local attacker could potentially use this flaw to escalate their privileges on the system.", "title": "Vulnerability description" }, { "category": "summary", "text": "autofs: priv escalation via interpreter load path for program based automount maps", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue does not affect the version of autofs package as shipped with Red Hat Enterprise Linux 5.", "title": "Statement" }, { "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": [ "7Client:autofs-1:5.0.7-54.el7.aarch64", "7Client:autofs-1:5.0.7-54.el7.ppc64", "7Client:autofs-1:5.0.7-54.el7.ppc64le", "7Client:autofs-1:5.0.7-54.el7.s390x", "7Client:autofs-1:5.0.7-54.el7.src", "7Client:autofs-1:5.0.7-54.el7.x86_64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Client:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Client:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7ComputeNode:autofs-1:5.0.7-54.el7.aarch64", "7ComputeNode:autofs-1:5.0.7-54.el7.ppc64", "7ComputeNode:autofs-1:5.0.7-54.el7.ppc64le", "7ComputeNode:autofs-1:5.0.7-54.el7.s390x", "7ComputeNode:autofs-1:5.0.7-54.el7.src", "7ComputeNode:autofs-1:5.0.7-54.el7.x86_64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7Server:autofs-1:5.0.7-54.el7.aarch64", "7Server:autofs-1:5.0.7-54.el7.ppc64", "7Server:autofs-1:5.0.7-54.el7.ppc64le", "7Server:autofs-1:5.0.7-54.el7.s390x", "7Server:autofs-1:5.0.7-54.el7.src", "7Server:autofs-1:5.0.7-54.el7.x86_64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Server:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Server:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7Workstation:autofs-1:5.0.7-54.el7.aarch64", "7Workstation:autofs-1:5.0.7-54.el7.ppc64", "7Workstation:autofs-1:5.0.7-54.el7.ppc64le", "7Workstation:autofs-1:5.0.7-54.el7.s390x", "7Workstation:autofs-1:5.0.7-54.el7.src", "7Workstation:autofs-1:5.0.7-54.el7.x86_64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2014-8169" }, { "category": "external", "summary": "RHBZ#1192565", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1192565" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2014-8169", "url": "https://www.cve.org/CVERecord?id=CVE-2014-8169" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2014-8169", "url": "https://nvd.nist.gov/vuln/detail/CVE-2014-8169" } ], "release_date": "2015-03-02T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2015-11-19T06:23:21+00:00", "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nFor details on how to apply this update, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "7Client:autofs-1:5.0.7-54.el7.aarch64", "7Client:autofs-1:5.0.7-54.el7.ppc64", "7Client:autofs-1:5.0.7-54.el7.ppc64le", "7Client:autofs-1:5.0.7-54.el7.s390x", "7Client:autofs-1:5.0.7-54.el7.src", "7Client:autofs-1:5.0.7-54.el7.x86_64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Client:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Client:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7ComputeNode:autofs-1:5.0.7-54.el7.aarch64", "7ComputeNode:autofs-1:5.0.7-54.el7.ppc64", "7ComputeNode:autofs-1:5.0.7-54.el7.ppc64le", "7ComputeNode:autofs-1:5.0.7-54.el7.s390x", "7ComputeNode:autofs-1:5.0.7-54.el7.src", "7ComputeNode:autofs-1:5.0.7-54.el7.x86_64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7Server:autofs-1:5.0.7-54.el7.aarch64", "7Server:autofs-1:5.0.7-54.el7.ppc64", "7Server:autofs-1:5.0.7-54.el7.ppc64le", "7Server:autofs-1:5.0.7-54.el7.s390x", "7Server:autofs-1:5.0.7-54.el7.src", "7Server:autofs-1:5.0.7-54.el7.x86_64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Server:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Server:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7Workstation:autofs-1:5.0.7-54.el7.aarch64", "7Workstation:autofs-1:5.0.7-54.el7.ppc64", "7Workstation:autofs-1:5.0.7-54.el7.ppc64le", "7Workstation:autofs-1:5.0.7-54.el7.s390x", "7Workstation:autofs-1:5.0.7-54.el7.src", "7Workstation:autofs-1:5.0.7-54.el7.x86_64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2015:2417" } ], "scores": [ { "cvss_v2": { "accessComplexity": "LOW", "accessVector": "LOCAL", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 4.6, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:L/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0" }, "products": [ "7Client:autofs-1:5.0.7-54.el7.aarch64", "7Client:autofs-1:5.0.7-54.el7.ppc64", "7Client:autofs-1:5.0.7-54.el7.ppc64le", "7Client:autofs-1:5.0.7-54.el7.s390x", "7Client:autofs-1:5.0.7-54.el7.src", "7Client:autofs-1:5.0.7-54.el7.x86_64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Client:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Client:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Client:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7ComputeNode:autofs-1:5.0.7-54.el7.aarch64", "7ComputeNode:autofs-1:5.0.7-54.el7.ppc64", "7ComputeNode:autofs-1:5.0.7-54.el7.ppc64le", "7ComputeNode:autofs-1:5.0.7-54.el7.s390x", "7ComputeNode:autofs-1:5.0.7-54.el7.src", "7ComputeNode:autofs-1:5.0.7-54.el7.x86_64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7ComputeNode:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7Server:autofs-1:5.0.7-54.el7.aarch64", "7Server:autofs-1:5.0.7-54.el7.ppc64", "7Server:autofs-1:5.0.7-54.el7.ppc64le", "7Server:autofs-1:5.0.7-54.el7.s390x", "7Server:autofs-1:5.0.7-54.el7.src", "7Server:autofs-1:5.0.7-54.el7.x86_64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Server:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Server:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Server:autofs-debuginfo-1:5.0.7-54.el7.x86_64", "7Workstation:autofs-1:5.0.7-54.el7.aarch64", "7Workstation:autofs-1:5.0.7-54.el7.ppc64", "7Workstation:autofs-1:5.0.7-54.el7.ppc64le", "7Workstation:autofs-1:5.0.7-54.el7.s390x", "7Workstation:autofs-1:5.0.7-54.el7.src", "7Workstation:autofs-1:5.0.7-54.el7.x86_64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.aarch64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.ppc64le", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.s390x", "7Workstation:autofs-debuginfo-1:5.0.7-54.el7.x86_64" ] } ], "threats": [ { "category": "impact", "details": "Moderate" } ], "title": "autofs: priv escalation via interpreter load path for program based automount maps" } ] }
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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.
- 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.