FKIE_CVE-2020-14347

Vulnerability from fkie_nvd - Published: 2020-08-05 14:15 - Updated: 2025-08-29 13:42
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable.
References
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.htmlBroken Link
secalert@redhat.comhttp://lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.htmlBroken Link
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347Issue Tracking, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2020/08/msg00057.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://lists.x.org/archives/xorg-announce/2020-July/003051.htmlMailing List, Patch, Vendor Advisory
secalert@redhat.comhttps://security.gentoo.org/glsa/202012-01Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/4488-1/Third Party Advisory
secalert@redhat.comhttps://usn.ubuntu.com/4488-2/Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2020/dsa-4758Third Party Advisory
secalert@redhat.comhttps://www.openwall.com/lists/oss-security/2020/07/31/2Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00066.htmlBroken Link
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00075.htmlBroken Link
af854a3a-2127-422b-91ae-364da2661108https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14347Issue Tracking, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2020/08/msg00057.htmlMailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.x.org/archives/xorg-announce/2020-July/003051.htmlMailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202012-01Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4488-1/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://usn.ubuntu.com/4488-2/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2020/dsa-4758Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.openwall.com/lists/oss-security/2020/07/31/2Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
x.org x_server *
debian debian_linux 9.0
debian debian_linux 10.0
canonical ubuntu_linux 14.04
canonical ubuntu_linux 16.04
canonical ubuntu_linux 18.04
canonical ubuntu_linux 20.04
To clipboard 

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  "cveTags": [],
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    {
      "lang": "en",
      "value": "A flaw was found in the way xserver memory was not properly initialized. This could leak parts of server memory to the X client. In cases where Xorg server runs with elevated privileges, this could result in possible ASLR bypass. Xorg-server before version 1.20.9 is vulnerable."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 un fallo en la manera en que la memoria de xserver no fue inicializada apropiadamente. Esto podr\u00eda filtrar partes de la memoria del servidor hacia cliente X. En los casos en que el servidor Xorg se ejecuta con privilegios elevados, esto podr\u00eda resultar en una posible omisi\u00f3n de ASLR. Xorg-server anterior a la versi\u00f3n 1.20.9 es vulnerable"
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  ],
  "id": "CVE-2020-14347",
  "lastModified": "2025-08-29T13:42:30.557",
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}


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Sightings

Author Source Type Date

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.



Detection rules are retrieved from Rulezet.