rhsa-2018_2462
Vulnerability from csaf_redhat
Published
2018-08-16 14:21
Modified
2024-11-15 03:06
Summary
Red Hat Security Advisory: qemu-kvm security and bug fix update
Notes
Topic
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.
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
Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.
Security Fix(es):
* QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams (CVE-2018-11806)
* QEMU: i386: multiboot OOB access while loading kernel image (CVE-2018-7550)
For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
Red Hat would like to thank Jskz - Zero Day Initiative (trendmicro.com) for reporting CVE-2018-11806 and Cyrille Chatras (Orange.com) and CERT-CC (Orange.com) for reporting CVE-2018-7550.
Bug Fix(es):
* Previously, live migrating a Windows guest in some cases caused the guest to become unresponsive. This update ensures that Real-time Clock (RTC) interrupts are not missed, which prevents the problem from occurring. (BZ#1596302)
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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The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.\n\nSecurity Fix(es):\n\n* QEMU: slirp: heap buffer overflow while reassembling fragmented datagrams (CVE-2018-11806)\n\n* QEMU: i386: multiboot OOB access while loading kernel image (CVE-2018-7550)\n\nFor more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.\n\nRed Hat would like to thank Jskz - Zero Day Initiative (trendmicro.com) for reporting CVE-2018-11806 and Cyrille Chatras (Orange.com) and CERT-CC (Orange.com) for reporting CVE-2018-7550.\n\nBug Fix(es):\n\n* Previously, live migrating a Windows guest in some cases caused the guest to become unresponsive. This update ensures that Real-time Clock (RTC) interrupts are not missed, which prevents the problem from occurring. (BZ#1596302)", "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-2018:2462", "url": "https://access.redhat.com/errata/RHSA-2018:2462" }, { "category": "external", "summary": "https://access.redhat.com/security/updates/classification/#important", "url": "https://access.redhat.com/security/updates/classification/#important" }, { "category": "external", "summary": "1549798", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1549798" }, { "category": "external", "summary": "1586245", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1586245" }, { "category": "self", "summary": "Canonical URL", "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2018/rhsa-2018_2462.json" } ], "title": "Red Hat Security Advisory: qemu-kvm security and bug fix update", "tracking": { "current_release_date": "2024-11-15T03:06:29+00:00", "generator": { "date": "2024-11-15T03:06:29+00:00", "engine": { "name": "Red Hat SDEngine", "version": "4.2.1" } }, "id": "RHSA-2018:2462", "initial_release_date": "2018-08-16T14:21:55+00:00", "revision_history": [ { "date": "2018-08-16T14:21:55+00:00", "number": "1", "summary": "Initial version" }, { "date": "2018-08-16T14:21:56+00:00", "number": "2", "summary": "Last updated version" }, { "date": "2024-11-15T03:06:29+00:00", "number": "3", "summary": "Last generated version" } ], "status": "final", "version": "3" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Red Hat 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"qemu-kvm-debuginfo-10:1.5.3-156.el7_5.5.x86_64", "relates_to_product_reference": "7Workstation-7.5.Z" }, { "category": "default_component_of", "full_product_name": { "name": "qemu-kvm-tools-10:1.5.3-156.el7_5.5.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)", "product_id": "7Workstation-7.5.Z:qemu-kvm-tools-10:1.5.3-156.el7_5.5.x86_64" }, "product_reference": "qemu-kvm-tools-10:1.5.3-156.el7_5.5.x86_64", "relates_to_product_reference": "7Workstation-7.5.Z" } ] }, "vulnerabilities": [ { "acknowledgments": [ { "names": [ "CERT-CC", "Cyrille Chatras" ], "organization": "Orange.com" } ], "cve": "CVE-2018-7550", "cwe": { "id": "CWE-787", "name": "Out-of-bounds Write" }, "discovery_date": "2018-02-21T00:00:00+00:00", "ids": [ { "system_name": "Red Hat Bugzilla ID", "text": "1549798" } ], "notes": [ { "category": "description", "text": "Quick Emulator (QEMU), compiled with the PC System Emulator with multiboot feature support, is vulnerable to an OOB r/w memory access issue. The issue could occur while loading a kernel image during the guest boot, if mh_load_end_addr address is greater than the mh_bss_end_addr address. 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It could occur while reassembling the fragmented datagrams of an incoming packet. 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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.