rhsa-2012_0016
Vulnerability from csaf_redhat
Published
2012-01-11 17:43
Modified
2024-11-22 06:04
Summary
Red Hat Security Advisory: libxml2 security update
Notes
Topic
Updated libxml2 packages that fix several security issues are now available
for Red Hat Enterprise Linux 4.
The Red Hat Security Response Team has rated this update as having
important security impact. Common Vulnerability Scoring System (CVSS) base
scores, which give detailed severity ratings, are available for each
vulnerability from the CVE links in the References section.
Details
The libxml2 library is a development toolbox providing the implementation
of various XML standards. One of those standards is the XML Path Language
(XPath), which is a language for addressing parts of an XML document.
A heap-based buffer overflow flaw was found in the way libxml2 decoded
entity references with long names. A remote attacker could provide a
specially-crafted XML file that, when opened in an application linked
against libxml2, would cause the application to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application. (CVE-2011-3919)
An off-by-one error, leading to a heap-based buffer overflow, was found in
the way libxml2 parsed certain XML files. A remote attacker could provide a
specially-crafted XML file that, when opened in an application linked
against libxml2, would cause the application to crash or, potentially,
execute arbitrary code with the privileges of the user running the
application. (CVE-2011-0216)
A flaw was found in the way libxml2 parsed certain XPath expressions. If an
attacker were able to supply a specially-crafted XML file to an application
using libxml2, as well as an XPath expression for that application to run
against the crafted file, it could cause the application to crash.
(CVE-2011-2834)
Note: Red Hat does not ship any applications that use libxml2 in a way that
would allow the CVE-2011-2834 flaw to be exploited; however, third-party
applications may allow XPath expressions to be passed which could trigger
this flaw.
An out-of-bounds memory read flaw was found in libxml2. A remote attacker
could provide a specially-crafted XML file that, when opened in an
application linked against libxml2, would cause the application to crash.
(CVE-2011-3905)
All users of libxml2 are advised to upgrade to these updated packages,
which contain backported patches to correct these issues. The desktop must
be restarted (log out, then log back in) for this update to take effect.
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": "Important" }, "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 libxml2 packages that fix several security issues are now available\nfor Red Hat Enterprise Linux 4.\n\nThe Red Hat Security Response Team has rated this update as having\nimportant security impact. Common Vulnerability Scoring System (CVSS) base\nscores, which give detailed severity ratings, are available for each\nvulnerability from the CVE links in the References section.", "title": "Topic" }, { "category": "general", "text": "The libxml2 library is a development toolbox providing the implementation\nof various XML standards. One of those standards is the XML Path Language\n(XPath), which is a language for addressing parts of an XML document.\n\nA heap-based buffer overflow flaw was found in the way libxml2 decoded\nentity references with long names. A remote attacker could provide a\nspecially-crafted XML file that, when opened in an application linked\nagainst libxml2, would cause the application to crash or, potentially,\nexecute arbitrary code with the privileges of the user running the\napplication. (CVE-2011-3919)\n\nAn off-by-one error, leading to a heap-based buffer overflow, was found in\nthe way libxml2 parsed certain XML files. A remote attacker could provide a\nspecially-crafted XML file that, when opened in an application linked\nagainst libxml2, would cause the application to crash or, potentially,\nexecute arbitrary code with the privileges of the user running the\napplication. (CVE-2011-0216)\n\nA flaw was found in the way libxml2 parsed certain XPath expressions. If an\nattacker were able to supply a specially-crafted XML file to an application\nusing libxml2, as well as an XPath expression for that application to run\nagainst the crafted file, it could cause the application to crash.\n(CVE-2011-2834)\n\nNote: Red Hat does not ship any applications that use libxml2 in a way that\nwould allow the CVE-2011-2834 flaw to be exploited; however, third-party\napplications may allow XPath expressions to be passed which could trigger\nthis flaw.\n\nAn out-of-bounds memory read flaw was found in libxml2. A remote attacker\ncould provide a specially-crafted XML file that, when opened in an\napplication linked against libxml2, would cause the application to crash.\n(CVE-2011-3905)\n\nAll users of libxml2 are advised to upgrade to these updated packages,\nwhich contain backported patches to correct these issues. The desktop must\nbe restarted (log out, then log back in) for this update to take effect.", "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-2012:0016", "url": "https://access.redhat.com/errata/RHSA-2012:0016" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "724906", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=724906" }, { "category": "external", "summary": "735751", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=735751" }, { "category": "external", "summary": "767387", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=767387" }, { "category": "external", "summary": "771896", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=771896" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2012/rhsa-2012_0016.json" } ], "title": "Red Hat Security Advisory: libxml2 security update", "tracking": { "current_release_date": "2024-11-22T06:04:02+00:00", "generator": { "date": "2024-11-22T06:04:02+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2012:0016", "initial_release_date": "2012-01-11T17:43:00+00:00", "revision_history": [ { "date": "2012-01-11T17:43:00+00:00", "number": "1", "summary": "Initial version" }, { "date": "2012-01-11T17:47:42+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-22T06:04:02+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat Enterprise Linux AS version 4", "product": { "name": "Red Hat Enterprise Linux AS version 4", "product_id": "4AS", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:4::as" } } }, { "category": "product_name", "name": "Red Hat Enterprise Linux Desktop version 4", "product": { "name": "Red Hat Enterprise Linux Desktop version 4", "product_id": "4Desktop", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:4::desktop" } } }, { "category": "product_name", "name": "Red Hat Enterprise Linux ES version 4", "product": { "name": "Red Hat Enterprise Linux ES version 4", "product_id": "4ES", "product_identification_helper": { "cpe": "cpe:/o:redhat:enterprise_linux:4::es" } } }, { "category": "product_name", "name": "Red Hat Enterprise Linux WS 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"relates_to_product_reference": "4WS" }, { "category": "default_component_of", "full_product_name": { "name": "libxml2-python-0:2.6.16-12.9.x86_64 as a component of Red Hat Enterprise Linux WS version 4", "product_id": "4WS:libxml2-python-0:2.6.16-12.9.x86_64" }, "product_reference": "libxml2-python-0:2.6.16-12.9.x86_64", "relates_to_product_reference": "4WS" } ] }, "vulnerabilities": [ { "cve": "CVE-2011-0216", "cwe": { "id": "CWE-122", "name": "Heap-based Buffer Overflow" }, "discovery_date": "2011-07-21T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "724906" } ], "notes": [ { "category": "description", "text": "Off-by-one error in libxml in Apple Safari before 5.0.6 allows remote attackers to execute arbitrary code or cause a denial of service (heap-based buffer overflow and application crash) via a crafted web site.", "title": "Vulnerability description" }, { "category": "summary", "text": "libxml2: Off-by-one error leading to heap-based buffer overflow in encoding", "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": [ "4AS:libxml2-0:2.6.16-12.9.i386", "4AS:libxml2-0:2.6.16-12.9.ia64", "4AS:libxml2-0:2.6.16-12.9.ppc", "4AS:libxml2-0:2.6.16-12.9.ppc64", "4AS:libxml2-0:2.6.16-12.9.s390", "4AS:libxml2-0:2.6.16-12.9.s390x", "4AS:libxml2-0:2.6.16-12.9.src", "4AS:libxml2-0:2.6.16-12.9.x86_64", "4AS:libxml2-debuginfo-0:2.6.16-12.9.i386", "4AS:libxml2-debuginfo-0:2.6.16-12.9.ia64", "4AS:libxml2-debuginfo-0:2.6.16-12.9.ppc", "4AS:libxml2-debuginfo-0:2.6.16-12.9.ppc64", "4AS:libxml2-debuginfo-0:2.6.16-12.9.s390", "4AS:libxml2-debuginfo-0:2.6.16-12.9.s390x", "4AS:libxml2-debuginfo-0:2.6.16-12.9.x86_64", "4AS:libxml2-devel-0:2.6.16-12.9.i386", 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"https://access.redhat.com/security/cve/CVE-2011-0216" }, { "category": "external", "summary": "RHBZ#724906", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=724906" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2011-0216", "url": "https://www.cve.org/CVERecord?id=CVE-2011-0216" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-0216", "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-0216" } ], "release_date": "2011-07-20T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2012-01-11T17:43:00+00:00", "details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. 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14.0.835.163, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors related to XPath handling.", "title": "Vulnerability description" }, { "category": "summary", "text": "libxml2: double-free caused by malformed XPath expression in XSLT", "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": [ "4AS:libxml2-0:2.6.16-12.9.i386", "4AS:libxml2-0:2.6.16-12.9.ia64", "4AS:libxml2-0:2.6.16-12.9.ppc", "4AS:libxml2-0:2.6.16-12.9.ppc64", "4AS:libxml2-0:2.6.16-12.9.s390", "4AS:libxml2-0:2.6.16-12.9.s390x", "4AS:libxml2-0:2.6.16-12.9.src", "4AS:libxml2-0:2.6.16-12.9.x86_64", "4AS:libxml2-debuginfo-0:2.6.16-12.9.i386", "4AS:libxml2-debuginfo-0:2.6.16-12.9.ia64", 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attackers to cause a denial of service (out-of-bounds read) via unspecified vectors.", "title": "Vulnerability description" }, { "category": "summary", "text": "libxml2 out of bounds read", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue affects the version of libxml2 as shipped with Red Hat Enterprise\nLinux 4, 5 and 6 and has been addressed via RHSA-2012:0016, RHSA-2012:0017 and\nRHSA-2012:0018 respectively. This issue affects the version of mingw32-libxml2\nas shipped with Red Hat Enterprise Linux 6. The Red Hat Security Response Team\nhas rated this issue as having low security impact. A future update may address\nthis issue in Red Hat Enterprise Linux 6.", "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": [ "4AS:libxml2-0:2.6.16-12.9.i386", "4AS:libxml2-0:2.6.16-12.9.ia64", "4AS:libxml2-0:2.6.16-12.9.ppc", "4AS:libxml2-0:2.6.16-12.9.ppc64", "4AS:libxml2-0:2.6.16-12.9.s390", "4AS:libxml2-0:2.6.16-12.9.s390x", "4AS:libxml2-0:2.6.16-12.9.src", "4AS:libxml2-0:2.6.16-12.9.x86_64", "4AS:libxml2-debuginfo-0:2.6.16-12.9.i386", "4AS:libxml2-debuginfo-0:2.6.16-12.9.ia64", "4AS:libxml2-debuginfo-0:2.6.16-12.9.ppc", "4AS:libxml2-debuginfo-0:2.6.16-12.9.ppc64", "4AS:libxml2-debuginfo-0:2.6.16-12.9.s390", "4AS:libxml2-debuginfo-0:2.6.16-12.9.s390x", "4AS:libxml2-debuginfo-0:2.6.16-12.9.x86_64", 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"https://access.redhat.com/security/cve/CVE-2011-3905" }, { "category": "external", "summary": "RHBZ#767387", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=767387" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2011-3905", "url": "https://www.cve.org/CVERecord?id=CVE-2011-3905" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2011-3905", "url": "https://nvd.nist.gov/vuln/detail/CVE-2011-3905" } ], "release_date": "2011-12-13T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2012-01-11T17:43:00+00:00", "details": "Before applying this update, make sure all previously-released errata\nrelevant to your system have been applied.\n\nThis update is available via the Red Hat Network. 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attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.", "title": "Vulnerability description" }, { "category": "summary", "text": "libxml2: Heap-based buffer overflow when decoding an entity reference with a long name", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue affected the versions of libxml2 as shipped with Red Hat Enterprise Linux 4, 5 and 6 and has been addressed via RHSA-2012:0016, RHSA-2012:0017 and RHSA-2012:0018 respectively.", "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": [ "4AS:libxml2-0:2.6.16-12.9.i386", "4AS:libxml2-0:2.6.16-12.9.ia64", "4AS:libxml2-0:2.6.16-12.9.ppc", "4AS:libxml2-0:2.6.16-12.9.ppc64", 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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.