ALSA-2020:4694 (CVE-2020-10749)
Vulnerability from osv_almalinux – Published: 2020-11-03 12:27 – Updated: 2026-10-25 23:37 – Source websiteThe container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.
Security Fix(es):
-
containernetworking/plugins: IPv6 router advertisements allow for MitM attacks on IPv4 clusters (CVE-2020-10749)
-
QEMU: slirp: networking out-of-bounds read information disclosure vulnerability (CVE-2020-10756)
-
golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash (CVE-2020-14040)
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.
Additional Changes:
For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "libslirp"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.3.1-1.module_el8.6.0+2876+9ed4eae2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "libslirp-devel"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.3.1-1.module_el8.6.0+2876+9ed4eae2"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "python-podman-api"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.0-0.2.gitd0a45fe.module_el8.5.0+2635+e4386a39"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "python-podman-api"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.0-0.2.gitd0a45fe.module_el8.5.0+108+00865455"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "The container-tools module contains tools for working with containers, notably podman, buildah, skopeo, and runc.\n\nSecurity Fix(es):\n\n* containernetworking/plugins: IPv6 router advertisements allow for MitM attacks on IPv4 clusters (CVE-2020-10749)\n\n* QEMU: slirp: networking out-of-bounds read information disclosure vulnerability (CVE-2020-10756)\n\n* golang.org/x/text: possibility to trigger an infinite loop in encoding/unicode could lead to crash (CVE-2020-14040)\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.\n\nAdditional Changes:\n\nFor detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section.",
"id": "ALSA-2020:4694",
"modified": "2026-10-25T23:37:52Z",
"published": "2020-11-03T12:27:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2020:4694"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1682970"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1752079"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1785242"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1800815"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1801874"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1804193"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1804195"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1813845"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1814928"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1818694"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1821193"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1822038"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1825789"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1827794"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1833220"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1835986"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1837755"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1847544"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1849557"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1850230"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1853230"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1853652"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1857606"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1858862"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1860126"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1866153"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1866833"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1867447"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1868612"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1872263"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1877463"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/1879622"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2020-4694.html"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2020-10749"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2020-10756"
},
{
"type": "REPORT",
"url": "https://vulners.com/cve/CVE-2020-14040"
}
],
"related": [
"CVE-2020-10749",
"CVE-2020-10756",
"CVE-2020-14040"
],
"schema_version": "1.7.0",
"summary": "Moderate: container-tools:rhel8 security, bug fix, and enhancement update",
"upstream": [
"CVE-2020-10749",
"CVE-2020-10756",
"CVE-2020-14040"
]
}
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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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
How durations are calculated
Following the VTEM framework (Black Hat USA 2015), time to patch starts when the vendor or a coordinator was informed, total time to patch at discovery, and disclosure to patch at public disclosure; vendor response time runs from the report to its acknowledgement. Time to exploit and time unpatched start at the earliest discovery or report, falling back to public disclosure. Unpatched time ends at the first recorded patch, or the calculation time when no patch is recorded. Exploitation to patch shows the interval between those two events; a published proof of concept is a public exploit, not exploitation.
Each result shows its source dates. A negative interval means the end event came first; when date-only inputs leave the order open, the result says so. Date-only inputs are approximate. The earliest evidence wins: KEV report dates and sightings are labelled as such. Records describing another vulnerability are listed but never calculated from, and a PoC alone does not establish exploitation. Missing patch evidence does not prove that no patch exists. Filters below change the event list only.
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Related by attack behaviour
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