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  <DocumentTitle xml:lang="en">Security update for apache2-mod_auth_openidc</DocumentTitle>
  <DocumentType>SUSE Patch</DocumentType>
  <DocumentPublisher Type="Vendor">
    <ContactDetails>security@suse.de</ContactDetails>
    <IssuingAuthority>SUSE Security Team</IssuingAuthority>
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    <Identification>
      <ID>SUSE-SU-2023:0215-1</ID>
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    <Status>Final</Status>
    <Version>1</Version>
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      <Revision>
        <Number>1</Number>
        <Date>2023-01-30T16:27:28Z</Date>
        <Description>current</Description>
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    <InitialReleaseDate>2023-01-30T16:27:28Z</InitialReleaseDate>
    <CurrentReleaseDate>2023-01-30T16:27:28Z</CurrentReleaseDate>
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      <Date>2017-02-24T01:00:00Z</Date>
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  <DocumentNotes>
    <Note Title="Topic" Type="Summary" Ordinal="1" xml:lang="en">Security update for apache2-mod_auth_openidc</Note>
    <Note Title="Details" Type="General" Ordinal="2" xml:lang="en">This update for apache2-mod_auth_openidc fixes the following issues:

- CVE-2022-23527: Fixed open redirect in oidc_validate_redirect_url() using tab character (bsc#1206441).
- CVE-2021-39191: Fixed open redirect issue in target_link_uri parameter (bsc#1190223).
</Note>
    <Note Title="Terms of Use" Type="Legal Disclaimer" Ordinal="3" xml:lang="en">The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).</Note>
    <Note Title="Patchnames" Type="Details" Ordinal="4" xml:lang="en">SUSE-2023-215,SUSE-SLE-Module-Server-Applications-15-SP4-2023-215,SUSE-SLE-Product-RT-15-SP3-2023-215,openSUSE-SLE-15.4-2023-215</Note>
  </DocumentNotes>
  <DocumentDistribution xml:lang="en">Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0)</DocumentDistribution>
  <DocumentReferences>
    <Reference Type="Self">
      <URL>https://www.suse.com/support/update/announcement/2023/suse-su-20230215-1/</URL>
      <Description>Link for SUSE-SU-2023:0215-1</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://lists.suse.com/pipermail/sle-security-updates/2023-January/013592.html</URL>
      <Description>E-Mail link for SUSE-SU-2023:0215-1</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/support/security/rating/</URL>
      <Description>SUSE Security Ratings</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/1190223</URL>
      <Description>SUSE Bug 1190223</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/1199868</URL>
      <Description>SUSE Bug 1199868</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://bugzilla.suse.com/1206441</URL>
      <Description>SUSE Bug 1206441</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2021-39191/</URL>
      <Description>SUSE CVE CVE-2021-39191 page</Description>
    </Reference>
    <Reference Type="Self">
      <URL>https://www.suse.com/security/cve/CVE-2022-23527/</URL>
      <Description>SUSE CVE CVE-2022-23527 page</Description>
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      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In versions prior to 2.4.9.4, the 3rd-party init SSO functionality of mod_auth_openidc was reported to be vulnerable to an open redirect attack by supplying a crafted URL in the `target_link_uri` parameter. A patch in version 2.4.9.4 made it so that the `OIDCRedirectURLsAllowed` setting must be applied to the `target_link_uri` parameter. There are no known workarounds aside from upgrading to a patched version.</Note>
    </Notes>
    <CVE>CVE-2021-39191</CVE>
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      <Threat Type="Impact">
        <Description>moderate</Description>
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    <Remediations>
      <Remediation Type="Vendor Fix">
        <Description xml:lang="en">To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
</Description>
        <URL>https://www.suse.com/support/update/announcement/2023/suse-su-20230215-1/</URL>
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    <References>
      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2021-39191.html</URL>
        <Description>CVE-2021-39191</Description>
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      <Reference>
        <URL>https://bugzilla.suse.com/1190223</URL>
        <Description>SUSE Bug 1190223</Description>
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    <Notes>
      <Note Title="Vulnerability Description" Type="General" Ordinal="1" xml:lang="en">mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.</Note>
    </Notes>
    <CVE>CVE-2022-23527</CVE>
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        <Description>moderate</Description>
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        <Description xml:lang="en">To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
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      <Reference>
        <URL>https://www.suse.com/security/cve/CVE-2022-23527.html</URL>
        <Description>CVE-2022-23527</Description>
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      <Reference>
        <URL>https://bugzilla.suse.com/1206441</URL>
        <Description>SUSE Bug 1206441</Description>
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