Vulnerability-Lookup

alsa-2024:4757

Vulnerability from osv_almalinux

Published

2024-07-23 00:00

Modified

2024-07-25 08:13

Summary

Moderate: libvirt security update

Details

Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the virtualized systems.

Security Fix(es):

libvirt: stack use-after-free in virNetClientIOEventLoop() (CVE-2024-4418)

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.

References

URL

Type

	https://access.redhat.com/errata/RHSA-2024:4757	ADVISORY
	https://access.redhat.com/security/cve/CVE-2024-4418	REPORT
	https://bugzilla.redhat.com/2278616	REPORT
	https://errata.almalinux.org/9/ALSA-2024-4757.html	ADVISORY

JSON

To clipboard

{
  "affected": [
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      "package": {
        "ecosystem": "AlmaLinux:9",
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      },
      "ranges": [
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      ]
    },
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      },
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      ]
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      },
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  ],
  "details": "Kernel-based Virtual Machine (KVM) offers a full virtualization solution forLinux on numerous hardware platforms. The virt:rhel module contains packageswhich provide user-space components used to run virtual machines using KVM.The packages also provide APIs for managing and interacting with the virtualized systems.\n\nSecurity Fix(es):\n\n* libvirt: stack use-after-free in virNetClientIOEventLoop() (CVE-2024-4418)\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.",
  "id": "ALSA-2024:4757",
  "modified": "2024-07-25T08:13:20Z",
  "published": "2024-07-23T00:00:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2024:4757"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2024-4418"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/2278616"
    },
    {
      "type": "ADVISORY",
      "url": "https://errata.almalinux.org/9/ALSA-2024-4757.html"
    }
  ],
  "related": [
    "CVE-2024-4418"
  ],
  "summary": "Moderate: libvirt security update"
}

CVE-2024-4418 (GCVE-0-2024-4418)

Vulnerability from cvelistv5 – Published: 2024-05-08 03:03 – Updated: 2026-02-25 20:31

Title

Libvirt: stack use-after-free in virnetclientioeventloop()

Summary

A race condition leading to a stack use-after-free flaw was found in libvirt. Due to a bad assumption in the virNetClientIOEventLoop() method, the `data` pointer to a stack-allocated virNetClientIOEventData structure ended up being used in the virNetClientIOEventFD callback while the data pointer's stack frame was concurrently being "freed" when returning from virNetClientIOEventLoop(). The 'virtproxyd' daemon can be used to trigger requests. If libvirt is configured with fine-grained access control, this issue, in theory, allows a user to escape their otherwise limited access. This flaw allows a local, unprivileged user to access virtproxyd without authenticating. Remote users would need to authenticate before they could access it.

Severity ?

6.2 (Medium)


                        
                          CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-562 - Return of Stack Variable Address

Assigner

redhat

References

URL

Tags

	https://access.redhat.com/errata/RHSA-2024:4351	vendor-advisoryx_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2024:4432	vendor-advisoryx_refsource_REDHAT
	https://access.redhat.com/errata/RHSA-2024:4757	vendor-advisoryx_refsource_REDHAT
	https://access.redhat.com/security/cve/CVE-2024-4418	vdb-entryx_refsource_REDHAT
	https://bugzilla.redhat.com/show_bug.cgi?id=2278616	issue-trackingx_refsource_REDHAT

Impacted products

Vendor

Product

Version

Affected: 0 , < 10.4.0 (semver)

Red Hat	Red Hat Enterprise Linux 8	Unaffected: 8100020240606142719.489197e6 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb
Red Hat	Red Hat Enterprise Linux 8	Unaffected: 8100020240606142719.489197e6 , < * (rpm) cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb
Red Hat	Red Hat Enterprise Linux 9	Unaffected: 0:10.0.0-6.6.el9_4 , < * (rpm) cpe:/a:redhat:enterprise_linux:9::crb cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat	Red Hat Enterprise Linux 9.2 Extended Update Support	Unaffected: 0:9.0.0-10.7.el9_2 , < * (rpm) cpe:/a:redhat:rhel_eus:9.2::appstream cpe:/a:redhat:rhel_eus:9.2::crb
Red Hat	Red Hat Enterprise Linux 6	cpe:/o:redhat:enterprise_linux:6
Red Hat	Red Hat Enterprise Linux 7	cpe:/o:redhat:enterprise_linux:7
Red Hat	Red Hat Enterprise Linux 8 Advanced Virtualization	cpe:/a:redhat:advanced_virtualization:8::el8

Date Public ?

2024-05-02 00:00

Credits

Red Hat would like to thank Martin Širokov for reporting this issue.

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

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