suse-su-2024:0935-1
Vulnerability from csaf_suse
Published
2024-03-19 12:03
Modified
2024-03-19 12:03
Summary
Security update for xen
Notes
Title of the patch
Security update for xen
Description of the patch
This update for xen fixes the following issues:
- CVE-2023-46841: Fixed shadow stack vs exceptions from emulation stubs (XSA-451) (bsc#1219885).
Patchnames
SUSE-2024-935,SUSE-SUSE-MicroOS-5.1-2024-935,SUSE-SUSE-MicroOS-5.2-2024-935
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
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"title": "Description of the patch"
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"title": "Patchnames"
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"summary": "E-Mail link for SUSE-SU-2024:0935-1",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2024-March/018202.html"
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},
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"relationships": [
{
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},
"vulnerabilities": [
{
"cve": "CVE-2023-46841",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2023-46841"
}
],
"notes": [
{
"category": "general",
"text": "Recent x86 CPUs offer functionality named Control-flow Enforcement\nTechnology (CET). A sub-feature of this are Shadow Stacks (CET-SS).\nCET-SS is a hardware feature designed to protect against Return Oriented\nProgramming attacks. When enabled, traditional stacks holding both data\nand return addresses are accompanied by so called \"shadow stacks\",\nholding little more than return addresses. Shadow stacks aren\u0027t\nwritable by normal instructions, and upon function returns their\ncontents are used to check for possible manipulation of a return address\ncoming from the traditional stack.\n\nIn particular certain memory accesses need intercepting by Xen. In\nvarious cases the necessary emulation involves kind of replaying of\nthe instruction. Such replaying typically involves filling and then\ninvoking of a stub. Such a replayed instruction may raise an\nexceptions, which is expected and dealt with accordingly.\n\nUnfortunately the interaction of both of the above wasn\u0027t right:\nRecovery involves removal of a call frame from the (traditional) stack.\nThe counterpart of this operation for the shadow stack was missing.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
"SUSE Linux Enterprise Micro 5.1:xen-libs-4.14.6_12-150300.3.66.1.x86_64",
"SUSE Linux Enterprise Micro 5.2:xen-libs-4.14.6_12-150300.3.66.1.x86_64"
]
},
"references": [
{
"category": "external",
"summary": "CVE-2023-46841",
"url": "https://www.suse.com/security/cve/CVE-2023-46841"
},
{
"category": "external",
"summary": "SUSE Bug 1219885 for CVE-2023-46841",
"url": "https://bugzilla.suse.com/1219885"
}
],
"remediations": [
{
"category": "vendor_fix",
"details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
"product_ids": [
"SUSE Linux Enterprise Micro 5.1:xen-libs-4.14.6_12-150300.3.66.1.x86_64",
"SUSE Linux Enterprise Micro 5.2:xen-libs-4.14.6_12-150300.3.66.1.x86_64"
]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.5,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"products": [
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"SUSE Linux Enterprise Micro 5.2:xen-libs-4.14.6_12-150300.3.66.1.x86_64"
]
}
],
"threats": [
{
"category": "impact",
"date": "2024-03-19T12:03:46Z",
"details": "moderate"
}
],
"title": "CVE-2023-46841"
}
]
}
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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.
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