CVE-2017-18509 (GCVE-0-2017-18509)
Vulnerability from cvelistv5 – Published: 2019-08-13 13:17 – Updated: 2024-08-05 21:28
VLAI
EPSS
VEX
Summary
An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels before 4.9.187.
Severity
7.8 (High)
CWE
- n/a
Assigner
References
13 references
| URL | Tags |
|---|---|
| https://pulsesecurity.co.nz/advisories/linux-kern… | x_refsource_MISC |
| https://salsa.debian.org/kernel-team/linux/commit… | x_refsource_MISC |
| https://lists.openwall.net/netdev/2017/12/04/40 | x_refsource_MISC |
| https://github.com/torvalds/linux/commit/99253eb7… | x_refsource_MISC |
| https://git.kernel.org/cgit/linux/kernel/git/torv… | x_refsource_MISC |
| https://www.debian.org/security/2019/dsa-4497 | vendor-advisoryx_refsource_DEBIAN |
| https://lists.debian.org/debian-lts-announce/2019… | mailing-listx_refsource_MLIST |
| https://seclists.org/bugtraq/2019/Aug/26 | mailing-listx_refsource_BUGTRAQ |
| https://lists.debian.org/debian-lts-announce/2019… | mailing-listx_refsource_MLIST |
| http://packetstormsecurity.com/files/154059/Slack… | x_refsource_MISC |
| https://support.f5.com/csp/article/K41582535 | x_refsource_CONFIRM |
| https://usn.ubuntu.com/4145-1/ | vendor-advisoryx_refsource_UBUNTU |
| https://support.f5.com/csp/article/K41582535?utm_… | x_refsource_CONFIRM |
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{
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],
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"vulnStatus": "Modified",
"weaknesses": [
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"value": "An issue was discovered in net/ipv6/ip6mr.c in the Linux kernel before 4.11. By setting a specific socket option, an attacker can control a pointer in kernel land and cause an inet_csk_listen_stop general protection fault, or potentially execute arbitrary code under certain circumstances. The issue can be triggered as root (e.g., inside a default LXC container or with the CAP_NET_ADMIN capability) or after namespace unsharing. This occurs because sk_type and protocol are not checked in the appropriate part of the ip6_mroute_* functions. NOTE: this affects Linux distributions that use 4.9.x longterm kernels before 4.9.187."
},
{
"lang": "es",
"value": "Se detecto un problema en net / ipv6 / ip6mr.c en el kernel de Linux antes de 4.11. Al establecer una opci\u00f3n de socket espec\u00edfica, un atacante puede controlar un puntero en la tierra del kernel y causar una falla de protecci\u00f3n general inet_csk_listen_stop, o potencialmente ejecutar c\u00f3digo arbitrario bajo ciertas circunstancias. El problema se puede desencadenar como root (por ejemplo, dentro de un contenedor LXC predeterminado o con la capacidad CAP_NET_ADMIN) o despu\u00e9s de compartir el espacio de nombres. Esto ocurre porque sk_type y el protocolo no se verifican en la parte apropiada de las funciones ip6_mroute_ *. NOTA: esto afecta a las distribuciones de Linux que usan n\u00facleos a largo plazo 4.9.x anteriores a 4.9.187."
}
],
"id": "CVE-2017-18509",
"lastModified": "2024-11-21T03:20:16.993",
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"version": "2.0"
},
"exploitabilityScore": 3.9,
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"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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},
"published": "2019-08-13T14:15:11.977",
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"tags": [
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"VDB Entry"
],
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},
{
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],
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],
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{
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{
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],
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],
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{
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},
{
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],
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},
{
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{
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{
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},
{
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],
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},
"redhat_vex": {
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"current_release_date": "2026-06-28T06:40:28+00:00",
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"id": "CVE-2017-18509",
"initial_release_date": "2017-01-01T00:00:00+00:00",
"product_status:known_not_affected": "104",
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"title": "kernel: not checking sk_type and protocol in net/ipv6/ip6mr.c leads to general protection fault, or arbitrary code execution",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2017/cve-2017-18509.json",
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},
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"id": "CVE-2017-18509",
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"title": "SUSE CVE CVE-2017-18509",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2017-18509.json",
"version": "22"
}
}
}
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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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