drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in D-BUS
Name: |
Pufferüberlauf in D-BUS |
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ID: |
201701-20 |
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Distribution: |
Gentoo |
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Plattformen: |
Keine Angabe |
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Datum: |
Mi, 11. Januar 2017, 16:49 |
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Referenzen: |
https://security.gentoo.org/glsa/201503-02 |
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Applikationen: |
D-BUS |
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Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --jbhG93LCv15L8UmadVicwfOOggELhWGNe Content-Type: multipart/mixed; boundary="0hI3hRUSMPig3GMc9jQv0gXMf1I97Debe" From: Aaron Bauman <bman@gentoo.org> To: gentoo-announce@lists.gentoo.org Message-ID: <d08fe11e-fc69-e443-5f1e-830e84b1eda6@gentoo.org> Subject: [ GLSA 201701-20 ] D-Bus: Format string vulnerability
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This is a multi-part message in MIME format. --------------530F6412CEDA44F80CA32DE0 Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201701-20 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: D-Bus: Format string vulnerability Date: January 11, 2017 Bugs: #596772 ID: 201701-20
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Synopsis ========
A vulnerability has been found in D-Bus possibly resulting in a local Denial of Service.
Background ==========
D-Bus is a message bus system, a simple way for applications to talk to one another.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/dbus < 1.10.12 >= 1.10.12
Description ===========
It was discovered that D-Bus incorrectly handles certain format strings.
The impact of this new vulnerability is believed to not be exploitable if D-Bus is patched against CVE-2015-0245. The previous vulnerability (CVE-2015-0245) was addressed in GLSA-201503-02 referenced below.
Impact ======
A local attacker could cause a Denial of Service condition or possibly execute arbitrary code.
Workaround ==========
The vulnerable D-Bus interface is intended only for use by systemd running as root.
The administrator can install a policy which denies sending from org.freedesktop.systemd1.Activator" to D-Bus. This will prevent non-root attackers from reaching the interface in order to exercise this flaw.
Resolution ==========
All D-Bus users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=sys-apps/dbus-1.10.12"
References ==========
[ 1 ] GLSA-201503-02 https://security.gentoo.org/glsa/201503-02
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201701-20
Concerns? =========
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.
License =======
Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
http://creativecommons.org/licenses/by-sa/2.5
--------------530F6412CEDA44F80CA32DE0 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
<html> <head>
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dutf= -8"> </head> <body bgcolor=3D"#FFFFFF" text=3D"#000000"> <p> <meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Du= tf-8"> </p> <pre style=3D"color: rgb(0, 0, 0); font-style: normal; font-variant-l= igatures: normal; font-variant-caps: normal; font-weight: normal; letter-= spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-tr= ansform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0= px; word-wrap: break-word; white-space: pre-wrap;">- - - - - - - - - - - = - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201701-20 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <a class=3D"moz-txt-link-freet= ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</= a> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: D-Bus: Format string vulnerability Date: January 11, 2017 Bugs: #596772 ID: 201701-20
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Synopsis =3D=3D=3D=3D=3D=3D=3D=3D
A vulnerability has been found in D-Bus possibly resulting in a local Denial of Service.
Background =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
D-Bus is a message bus system, a simple way for applications to talk to one another.
Affected packages =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 sys-apps/dbus < 1.10.12 >=3D 1.1= 0.12=20
Description =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
It was discovered that D-Bus incorrectly handles certain format strings.
The impact of this new vulnerability is believed to not be exploitable if D-Bus is patched against CVE-2015-0245. The previous vulnerability (CVE-2015-0245) was addressed in GLSA-201503-02 referenced below.
Impact =3D=3D=3D=3D=3D=3D
A local attacker could cause a Denial of Service condition or possibly execute arbitrary code.
Workaround =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
The vulnerable D-Bus interface is intended only for use by systemd running as root.
The administrator can install a policy which denies sending from=20 org.freedesktop.systemd1.Activator" to D-Bus. This will prevent non-root attackers from reaching the interface in order to exercise this flaw.
Resolution =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All D-Bus users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose ">=3Dsys-apps/dbus-1.10.12"
References =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] GLSA-201503-02 <a class=3D"moz-txt-link-freetext" href=3D"https://security.gentoo.= org/glsa/201503-02">https://security.gentoo.org/glsa/201503-02</a>
Availability =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
<a class=3D"moz-txt-link-freetext" href=3D"https://security.gentoo.org/g= lsa/201701-20">https://security.gentoo.org/glsa/201701-20</a>
Concerns? =3D=3D=3D=3D=3D=3D=3D=3D=3D
Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to <a class=3D"moz-txt-link-abbreviated" href=3D"mailto:security@gentoo.org"= >security@gentoo.org</a> or alternatively, you may file a bug at <a class=3D"moz-txt-link-freetext" href=3D"https://bugs.gentoo.org">https= ://bugs.gentoo.org</a>.
License =3D=3D=3D=3D=3D=3D=3D
Copyright 2017 Gentoo Foundation, Inc; referenced text belongs to its owner(s).
The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.
<a class=3D"moz-txt-link-freetext" href=3D"http://creativecommons.org/lic= enses/by-sa/2.5">http://creativecommons.org/licenses/by-sa/2.5</a></pre> </body> </html>
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