OPENSUSE-SU-2020:1899-1
Vulnerability from csaf_opensuse - Published: 2020-11-11 09:30 - Updated: 2026-09-20 19:16Summary
Security update for sddm
Severity
Moderate
Notes
Title of the patch: Security update for sddm
Description of the patch: This update for sddm fixes the following issue:
- Fix X not having access control on startup (boo#1177201, CVE-2020-28049).
This update was imported from the openSUSE:Leap:15.2:Update update project.
Patchnames: openSUSE-2020-1899
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
6.3 (Medium)
Affected products
Recommended
16 products
| Product | Identifier | Version | Remediation |
|---|---|---|---|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-0:0.18.0-bp152.5.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-0:0.18.0-bp152.5.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-0:0.18.0-bp152.5.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-0:0.18.0-bp152.5.3.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-SLE-0:0.18.0-bp152.5.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-SLE-0:0.18.0-bp152.5.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-SLE-0:0.18.0-bp152.5.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-SLE-0:0.18.0-bp152.5.3.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-openSUSE-0:0.18.0-bp152.5.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-openSUSE-0:0.18.0-bp152.5.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-openSUSE-0:0.18.0-bp152.5.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-openSUSE-0:0.18.0-bp152.5.3.1.x86_64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-upstream-0:0.18.0-bp152.5.3.1.aarch64 | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-upstream-0:0.18.0-bp152.5.3.1.ppc64le | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-upstream-0:0.18.0-bp152.5.3.1.s390x | — |
Vendor Fix
|
|
| Unresolved product id: SUSE Package Hub 15 SP2:sddm-branding-upstream-0:0.18.0-bp152.5.3.1.x86_64 | — |
Vendor Fix
|
Threats
Impact
moderate
References
8 references
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"name": "sddm-branding-upstream-0:0.18.0-bp152.5.3.1.ppc64le as component of SUSE Package Hub 15 SP2",
"product_id": "SUSE Package Hub 15 SP2:sddm-branding-upstream-0:0.18.0-bp152.5.3.1.ppc64le"
},
"product_reference": "sddm-branding-upstream-0:0.18.0-bp152.5.3.1.ppc64le",
"relates_to_product_reference": "SUSE Package Hub 15 SP2"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "sddm-branding-upstream-0:0.18.0-bp152.5.3.1.s390x as component of SUSE Package Hub 15 SP2",
"product_id": "SUSE Package Hub 15 SP2:sddm-branding-upstream-0:0.18.0-bp152.5.3.1.s390x"
},
"product_reference": "sddm-branding-upstream-0:0.18.0-bp152.5.3.1.s390x",
"relates_to_product_reference": "SUSE Package Hub 15 SP2"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "sddm-branding-upstream-0:0.18.0-bp152.5.3.1.x86_64 as component of SUSE Package Hub 15 SP2",
"product_id": "SUSE Package Hub 15 SP2:sddm-branding-upstream-0:0.18.0-bp152.5.3.1.x86_64"
},
"product_reference": "sddm-branding-upstream-0:0.18.0-bp152.5.3.1.x86_64",
"relates_to_product_reference": "SUSE Package Hub 15 SP2"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2020-28049",
"ids": [
{
"system_name": "SUSE CVE Page",
"text": "https://www.suse.com/security/cve/CVE-2020-28049"
}
],
"notes": [
{
"category": "general",
"text": "An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation.",
"title": "CVE description"
}
],
"product_status": {
"recommended": [
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]
},
"references": [
{
"category": "external",
"summary": "CVE-2020-28049",
"url": "https://www.suse.com/security/cve/CVE-2020-28049"
},
{
"category": "external",
"summary": "SUSE Bug 1177201 for CVE-2020-28049",
"url": "https://bugzilla.suse.com/1177201"
}
],
"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",
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]
}
],
"scores": [
{
"cvss_v3": {
"baseScore": 6.3,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
},
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]
}
],
"threats": [
{
"category": "impact",
"date": "2020-11-11T09:30:41Z",
"details": "moderate"
}
],
"title": "CVE-2020-28049"
}
]
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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