FKIE_CVE-2015-2830

Vulnerability from fkie_nvd - Published: 2015-05-27 10:59 - Updated: 2026-06-17 00:24
Severity
Summary
arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16.
References
cve@mitre.orghttp://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
cve@mitre.orghttp://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2015-1137.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2015-1138.html
cve@mitre.orghttp://rhn.redhat.com/errata/RHSA-2015-1221.html
cve@mitre.orghttp://www.debian.org/security/2015/dsa-3237
cve@mitre.orghttp://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2Vendor Advisory
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2015/04/02/1
cve@mitre.orghttp://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
cve@mitre.orghttp://www.securitytracker.com/id/1032413
cve@mitre.orghttp://www.ubuntu.com/usn/USN-2631-1
cve@mitre.orghttp://www.ubuntu.com/usn/USN-2632-1
cve@mitre.orghttps://bugzilla.redhat.com/show_bug.cgi?id=1208598
cve@mitre.orghttps://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b
af854a3a-2127-422b-91ae-364da2661108http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00004.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00018.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00021.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2015-1137.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2015-1138.html
af854a3a-2127-422b-91ae-364da2661108http://rhn.redhat.com/errata/RHSA-2015-1221.html
af854a3a-2127-422b-91ae-364da2661108http://www.debian.org/security/2015/dsa-3237
af854a3a-2127-422b-91ae-364da2661108http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.19.2Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2015/04/02/1
af854a3a-2127-422b-91ae-364da2661108http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html
af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id/1032413
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2631-1
af854a3a-2127-422b-91ae-364da2661108http://www.ubuntu.com/usn/USN-2632-1
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=1208598
af854a3a-2127-422b-91ae-364da2661108https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b
Impacted products
Vendor Product Version
debian debian_linux 7.0
debian debian_linux 8.0
linux linux_kernel *
canonical ubuntu_linux 12.04
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    }
  ],
  "configurations": [
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      "nodes": [
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          "cpeMatch": [
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              "vulnerable": true
            },
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              "matchCriteriaId": "C11E6FB0-C8C0-4527-9AA0-CB9B316F8F43",
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              "versionEndIncluding": "3.19.1",
              "vulnerable": true
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          "negate": false,
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      ]
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "arch/x86/kernel/entry_64.S in the Linux kernel before 3.19.2 does not prevent the TS_COMPAT flag from reaching a user-mode task, which might allow local users to bypass the seccomp or audit protection mechanism via a crafted application that uses the (1) fork or (2) close system call, as demonstrated by an attack against seccomp before 3.16."
    },
    {
      "lang": "es",
      "value": "arch/x86/kernel/entry_64.S en el kernel de Linux anterior a 3.19.2 no impide que el indicador TS_COMPAT llegue a una tarea de modo de usuario, lo que podr\u00eda permitir a usuarios locales evadir el mecanismo de protecci\u00f3n de seccomp o de auditoria a trav\u00e9s de una aplicaci\u00f3n manipulada que utiliza la llamada de sistema (1) bifurcada o (2) cerrada, tal y como fue demostrado por un ataque sobre seccomp anterior a 3.16."
    }
  ],
  "id": "CVE-2015-2830",
  "lastModified": "2026-06-17T00:24:50.347",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "LOW",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "LOCAL",
          "authentication": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 1.9,
          "confidentialityImpact": "NONE",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:L/AC:M/Au:N/C:N/I:P/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 3.4,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ]
  },
  "published": "2015-05-27T10:59:06.127",
  "references": [
    {
      "source": "cve@mitre.org",
      "url": "http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=956421fbb74c3a6261903f3836c0740187cf038b"
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      "url": "http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html"
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    {
      "source": "cve@mitre.org",
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    },
    {
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      "url": "http://www.ubuntu.com/usn/USN-2631-1"
    },
    {
      "source": "cve@mitre.org",
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    {
      "source": "cve@mitre.org",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1208598"
    },
    {
      "source": "cve@mitre.org",
      "url": "https://github.com/torvalds/linux/commit/956421fbb74c3a6261903f3836c0740187cf038b"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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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

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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.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
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