drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Mangelnde Rechteprüfung in libuv
Name: |
Mangelnde Rechteprüfung in libuv |
|
ID: |
201611-10 |
|
Distribution: |
Gentoo |
|
Plattformen: |
Keine Angabe |
|
Datum: |
Do, 17. November 2016, 12:04 |
|
Referenzen: |
http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-0278 |
|
Applikationen: |
libuv |
|
Originalnachricht |
This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --nwocAB3lnpMNKlcbsA5kjAdmreVfXjJpL Content-Type: multipart/mixed; boundary="670Os8UtCViUtAoL1ifvL6C8mlBfcVfxF" From: Aaron Bauman <bman@gentoo.org> To: gentoo-announce@lists.gentoo.org Message-ID: <1f3c22ce-f32c-ae2d-3839-e665362ed6fd@gentoo.org> Subject: [ GLSA 201611-10 ] libuv: Privilege escalation
--670Os8UtCViUtAoL1ifvL6C8mlBfcVfxF Content-Type: multipart/alternative; boundary="------------C36E12EB05A406668E298F6D"
This is a multi-part message in MIME format. --------------C36E12EB05A406668E298F6D Content-Type: text/plain; charset=utf- Content-Transfer-Encoding: quoted-printable
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 201611-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: libuv: Privilege escalation Date: November 17, 2016 Bugs: #540826 ID: 201611-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis ========
A vulnerability in libuv could lead to privilege escalation.
Background ==========
libuv is a multi-platform support library with a focus on asynchronous I/O.
Affected packages =================
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libuv < 1.4.2 >= 1.4.2
Description ===========
It was discovered that libuv does not call setgroups before calling setuid/setgid. If this is not called, then even though the uid has been dropped, there may still be groups associated that permit superuser privileges.
Impact ======
Context-dependent attackers could escalate privileges via unspecified vectors.
Workaround ==========
There is no known workaround at this time.
Resolution ==========
All libuv users should upgrade to the latest version:
# emerge --sync # emerge --ask --verbose --oneshot ">=dev-libs/libuv-1.4.2"
References ==========
[ 1 ] CVE-2015-0278 http://nvd.nist.gov/nvd.cfm?cvename=CVE-2015-0278
Availability ============
This GLSA and any updates to it are available for viewing at the Gentoo Security Website:
https://security.gentoo.org/glsa/201611-10
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 2016 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
--------------C36E12EB05A406668E298F6D 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 201611-10 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - <a class=3D"moz-txt-link-freet= ext" href=3D"https://security.gentoo.org/">https://security.gentoo.org/</= a> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Severity: Normal Title: libuv: Privilege escalation Date: November 17, 2016 Bugs: #540826 ID: 201611-10
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Synopsis =3D=3D=3D=3D=3D=3D=3D=3D
A vulnerability in libuv could lead to privilege escalation.
Background =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
libuv is a multi-platform support library with a focus on asynchronous I/O.
Affected packages =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-libs/libuv < 1.4.2 >=3D 1= =2E4.2=20
Description =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
It was discovered that libuv does not call setgroups before calling setuid/setgid. If this is not called, then even though the uid has been dropped, there may still be groups associated that permit superuser privileges.
Impact =3D=3D=3D=3D=3D=3D
Context-dependent attackers could escalate privileges via unspecified vectors.
Workaround =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
There is no known workaround at this time.
Resolution =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
All libuv users should upgrade to the latest version:
# emerge --sync # emerge --ask --verbose --oneshot ">=3Ddev-libs/libuv-1.4.2"
References =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
[ 1 ] CVE-2015-0278 <a class=3D"moz-txt-link-freetext" href=3D"http://nvd.nist.gov/nvd.= cfm?cvename=3DCVE-2015-0278">http://nvd.nist.gov/nvd.cfm?cvename=3DCVE-20= 15-0278</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/201611-10">https://security.gentoo.org/glsa/201611-10</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 2016 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>
--------------C36E12EB05A406668E298F6D--
--670Os8UtCViUtAoL1ifvL6C8mlBfcVfxF--
--nwocAB3lnpMNKlcbsA5kjAdmreVfXjJpL Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE----- Version: GnuPG v2
iQJ8BAEBCgBmBQJYLYHcXxSAAAAAAC4AKGlzc3Vlci1mcHJAbm90YXRpb25zLm9w ZW5wZ3AuZmlmdGhob3JzZW1hbi5uZXQ1OTcyRDI4NDhFOEE0NDYwRTdERTY4QUM5 RjI4QkQ4QkQxRTM5NUZGAAoJEJ8ovYvR45X/fsMP/iolX9YHeQIFwA686aOzB+U4 usLbO250oo693VLjF09jeupfEPT1CxKfQ5Vt0wtM2PII0l/4ObMc7TM87FUt24J/ GMEIhdb9g12zBdVXpBUpCaZ75tvxuwrCjbYDuZ9bR5MpLB+k7abTJaR12KI+bZa9 7XMQIDjccaeW5IvVzU9wh8HQKJd+YiovfMi0/1TmCnvEwNo3rodTrPJWSKs71jPZ BlrKmLE6AQvKvAF4QFUxSe3mN6s41xfQcbh+GAQm8iusjT3EQKYbIdPQ5k8Ze4Bk XR4KfZKMVg2xZI3IVcwEm7NCqnw4i2th2yJuJwfuFqMj7vTnR+YiEmLP5u+/uTAX IAGm008vKTfjA2hMc5PmlTMUrX2EqxO+hUQmL34G6iuGEFO3vh8gHg6K3eP1Uklj VBM4qH4upDSTucKYJhBHwyqkECgraWkUBZDasPQnRxnlpFDa8EsYXpx801Ld0QNZ pfMYePbpGBoT3t8I4+Pf8b0u/gckLCJJAIv6tsAbPRxgdpqqPrS+r1gxno0f6e+I XaUTulH0pKft8Ds5wGh9P4sEQ/In2tMQlPhlnoc/PX0aOCJQTIpc2xQP3O/JURfZ Uh9avSHTEe3EBVovkfirP/1WX2RYGtkqsDfhWjqVJZteTe5rV7ZCnfUjUl9yriny ckbUvo4CsnoFX7iP8hyn =J5O/ -----END PGP SIGNATURE-----
--nwocAB3lnpMNKlcbsA5kjAdmreVfXjJpL--
|
|
|
|