rhsa-2020:3658
Vulnerability from csaf_redhat
Published
2020-09-08 09:40
Modified
2024-11-22 15:34
Summary
Red Hat Security Advisory: librepo security update
Notes
Topic
An update for librepo is now available for Red Hat Enterprise Linux 8.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The librepo library provides a C and Python API to download repository metadata.
Security Fix(es):
* librepo: missing path validation in repomd.xml may lead to directory traversal (CVE-2020-14352)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
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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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-2020:3658", "url": "https://access.redhat.com/errata/RHSA-2020:3658" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1866498", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1866498" }, { "category": "self", "summary": "Canonical 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"BaseOS-8.2.0.Z.MAIN.EUS" }, { "category": "default_component_of", "full_product_name": { "name": "python3-librepo-debuginfo-0:1.11.0-3.el8_2.x86_64 as a component of Red Hat Enterprise Linux BaseOS (v. 8)", "product_id": "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.x86_64" }, "product_reference": "python3-librepo-debuginfo-0:1.11.0-3.el8_2.x86_64", "relates_to_product_reference": "BaseOS-8.2.0.Z.MAIN.EUS" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "Sergei Iudin \u003csiudin@fb.com\u003e" ] } ], "cve": "CVE-2020-14352", "cwe": { "id": "CWE-22", "name": "Improper Limitation of a Pathname to a Restricted Directory (\u0027Path Traversal\u0027)" }, "discovery_date": "2020-07-30T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1866498" } ], "notes": [ { "category": "description", "text": "A flaw was found in librepo. A directory traversal vulnerability was found where it failed to sanitize paths in remote repository metadata. An attacker controlling a remote repository may be able to copy files outside of the destination directory on the targeted system via path traversal. This flaw could potentially result in system compromise via the overwriting of critical system files. The highest threat from this flaw is to users that make use of untrusted third-party repositories.", "title": "Vulnerability description" }, { "category": "summary", "text": "librepo: missing path validation in repomd.xml may lead to directory traversal", "title": "Vulnerability summary" }, { "category": "other", "text": "This issue is rated as having Moderate impact on Red Hat Enterprise Linux 7 because `DNF` is not installed by default. The `DNF` package is available through the Extras channel as an enhancement to YUM 3. Both Fedora and Red Hat Enterprise Linux leverage transport security and package signatures to ship software to their users in a safe way.\n\nFedora provides a centralized, non-mirrored Fedora-run metalink service which provides a list if active mirrors and the expected cryptographic digest of the `repomd.xml` files. yum uses this information to select a mirror and verify that it serves the up-to-date, untampered `repomd.xml`. The chain of cryptographic digests is verified from there, eventually leading to verification of the .rpm file contents.\n\nRed Hat uses a different option to distribute Red Hat Enterprise Linux and its RPM-based products: a content-distribution network, managed by a trusted third party. Furthermore, the repositories provided by Red Hat use a separate public key infrastructure which is managed by Red Hat. For further information, refer to the following articles.\n\n[1] https://access.redhat.com/blogs/766093/posts/1976693\n\n[2] https://access.redhat.com/articles/1373143", "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": [ "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.src", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://access.redhat.com/security/cve/CVE-2020-14352" }, { "category": "external", "summary": "RHBZ#1866498", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1866498" }, { "category": "external", "summary": "https://www.cve.org/CVERecord?id=CVE-2020-14352", "url": "https://www.cve.org/CVERecord?id=CVE-2020-14352" }, { "category": "external", "summary": "https://nvd.nist.gov/vuln/detail/CVE-2020-14352", "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-14352" } ], "release_date": "2020-08-13T00:00:00+00:00", "remediations": [ { "category": "vendor_fix", "date": "2020-09-08T09:40:49+00:00", "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258", "product_ids": [ "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.src", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debuginfo-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:librepo-debugsource-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-0:1.11.0-3.el8_2.x86_64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.aarch64", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.i686", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.ppc64le", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.s390x", "BaseOS-8.2.0.Z.MAIN.EUS:python3-librepo-debuginfo-0:1.11.0-3.el8_2.x86_64" ], "restart_required": { "category": "none" }, "url": "https://access.redhat.com/errata/RHSA-2020:3658" }, { "category": "workaround", "details": "Avoid downloading software from untrusted third-party mirrors. 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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.