rhsa-2024_4749
Vulnerability from csaf_redhat
Published
2024-07-23 16:35
Modified
2024-11-06 06:30
Summary
Red Hat Security Advisory: edk2 security update
Notes
Topic
An update for edk2 is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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
EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM.
Security Fix(es):
* EDK2: integer overflow in CreateHob() could lead to HOB OOB R/W (CVE-2022-36765)
* edk2: Predictable TCP Initial Sequence Numbers (CVE-2023-45236)
* edk2: Use of a Weak PseudoRandom Number Generator (CVE-2023-45237)
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.
{ "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": "An update for edk2 is now available for Red Hat Enterprise Linux 9.\n\nRed Hat Product Security has rated this update as having a security impact of Moderate. 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.", "title": "Topic" }, { "category": "general", "text": "EDK (Embedded Development Kit) is a project to enable UEFI support for Virtual Machines. This package contains a sample 64-bit UEFI firmware for QEMU and KVM. \n\nSecurity Fix(es):\n\n* EDK2: integer overflow in CreateHob() could lead to HOB OOB R/W (CVE-2022-36765)\n\n* edk2: Predictable TCP Initial Sequence Numbers (CVE-2023-45236)\n\n* edk2: Use of a Weak PseudoRandom Number Generator (CVE-2023-45237)\n\nFor 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.", "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-2024:4749", "url": "https://access.redhat.com/errata/RHSA-2024:4749" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#moderate", "url": "https://access.redhat.com/security/updates/classification/#moderate" }, { "category": "external", "summary": "2257584", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2257584" }, { "category": "external", "summary": "2258703", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2258703" }, { "category": "external", "summary": "2258706", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2258706" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2024/rhsa-2024_4749.json" } ], "title": "Red Hat Security Advisory: edk2 security update", "tracking": { "current_release_date": "2024-11-06T06:30:31+00:00", "generator": { "date": "2024-11-06T06:30:31+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.1.1" } }, "id": "RHSA-2024:4749", "initial_release_date": "2024-07-23T16:35:09+00:00", "revision_history": [ { "date": "2024-07-23T16:35:09+00:00", "number": "1", "summary": "Initial version" }, { "date": "2024-07-23T16:35:09+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-06T06:30:31+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { 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} ] }, "vulnerabilities": [ { "cve": "CVE-2022-36765", "cwe": { "id": "CWE-680", "name": "Integer Overflow to Buffer Overflow" }, "discovery_date": "2024-01-10T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "2257584" } ], "notes": [ { "category": "description", "text": "A flaw was found in the CreateHob() function in EDK2. An attacker, leveraging a local network, can initiate an integer overflow leading to a buffer overflow. This issue arises during size alignment within the CreateHob() function, requiring activation in the PEI phase. Successful exploitation of this flaw poses a moderate threat to confidentiality and integrity, however, the primary consequence is likely a crash or denial of service.", "title": "Vulnerability description" }, { "category": "summary", "text": "EDK2: integer overflow in CreateHob() could lead to HOB OOB R/W", "title": "Vulnerability summary" }, { "category": "other", "text": "Red Hat has protection mechanisms in place against buffer overflows, such as FORTIFY_SOURCE, Position Independent Executables or Stack Smashing Protection.", "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": [ "AppStream-9.4.0.Z.MAIN.EUS:edk2-0:20231122-6.el9_4.2.src", "AppStream-9.4.0.Z.MAIN.EUS:edk2-aarch64-0:20231122-6.el9_4.2.noarch", 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[ { "category": "description", "text": "A security flaw has been identified in the cryptographic system of EDK2, the open-source reference implementation of the UEFI specification. This vulnerability enables an unauthorized remote attacker to potentially expose sensitive information.", "title": "Vulnerability description" }, { "category": "summary", "text": "edk2: Use of a Weak PseudoRandom Number Generator", "title": "Vulnerability summary" }, { "category": "other", "text": "The identified flaw in the NetworkPkg IP stack within the EDK2, an open-source UEFI implementation, poses a moderate security concern as the vulnerability allows an unauthenticated attacker within the same local network to exploit via a specifically crafted Destination Options IPv6 header.", "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": [ "AppStream-9.4.0.Z.MAIN.EUS:edk2-0:20231122-6.el9_4.2.src", 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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.