Login
Login-Name Passwort


 
Newsletter
Werbung

Sicherheit: Mehrere Probleme in glibc
Aktuelle Meldungen Distributionen
Name: Mehrere Probleme in glibc
ID: USN-2985-1
Distribution: Ubuntu
Plattformen: Ubuntu 12.04 LTS, Ubuntu 14.04 LTS, Ubuntu 15.10
Datum: Mi, 25. Mai 2016, 23:11
Referenzen: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2856
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8777
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8778
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1781
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-8121
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2013-2207
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8779
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-9761
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3075
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-5277
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-8776

Originalnachricht


--===============5494822111136158808==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="M1akecbV8LB7u7K0"
Content-Disposition: inline


--M1akecbV8LB7u7K0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inlin
Content-Transfer-Encoding: quoted-printable

==========================================================================
Ubuntu Security Notice USN-2985-1
May 25, 2016

eglibc, glibc vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in the GNU C Library.

Software Description:
- glibc: GNU C Library
- eglibc: GNU C Library

Details:

Martin Carpenter discovered that pt_chown in the GNU C Library did not
properly check permissions for tty files. A local attacker could use this
to gain administrative privileges or expose sensitive information.
(CVE-2013-2207, CVE-2016-2856)

Robin Hack discovered that the Name Service Switch (NSS) implementation in
the GNU C Library did not properly manage its file descriptors. An attacker
could use this to cause a denial of service (infinite loop).
(CVE-2014-8121)

Joseph Myers discovered that the GNU C Library did not properly handle long
arguments to functions returning a representation of Not a Number (NaN). An
attacker could use this to cause a denial of service (stack exhaustion
leading to an application crash) or possibly execute arbitrary code.
(CVE-2014-9761)

Arjun Shankar discovered that in certain situations the nss_dns code in the
GNU C Library did not properly account buffer sizes when passed an
unaligned buffer. An attacker could use this to cause a denial of service
or possibly execute arbitrary code. (CVE-2015-1781)

Sumit Bose and Lukáš Slebodník discovered that the Name Service
Switch (NSS) implementation in the GNU C Library did not handle long
lines in the files databases correctly. A local attacker could use
this to cause a denial of service (application crash) or possibly
execute arbitrary code. (CVE-2015-5277)

Adam Nielsen discovered that the strftime function in the GNU C Library did
not properly handle out-of-range argument data. An attacker could use this
to cause a denial of service (application crash) or possibly expose
sensitive information. (CVE-2015-8776)

Hector Marco and Ismael Ripoll discovered that the GNU C Library allowed
the pointer-guarding protection mechanism to be disabled by honoring the
LD_POINTER_GUARD environment variable across privilege boundaries. A local
attacker could use this to exploit an existing vulnerability more easily.
(CVE-2015-8777)

Szabolcs Nagy discovered that the hcreate functions in the GNU C Library
did not properly check its size argument, leading to an integer overflow.
An attacker could use to cause a denial of service (application crash) or
possibly execute arbitrary code. (CVE-2015-8778)

Maksymilian Arciemowicz discovered a stack-based buffer overflow in the
catopen function in the GNU C Library when handling long catalog names. An
attacker could use this to cause a denial of service (application crash) or
possibly execute arbitrary code. (CVE-2015-8779)

Florian Weimer discovered that the getnetbyname implementation in the GNU C
Library did not properly handle long names passed as arguments. An attacker
could use to cause a denial of service (stack exhaustion leading to an
application crash). (CVE-2016-3075)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.10:
libc6 2.21-0ubuntu4.2
libc6-dev 2.21-0ubuntu4.2

Ubuntu 14.04 LTS:
libc6 2.19-0ubuntu6.8
libc6-dev 2.19-0ubuntu6.8

Ubuntu 12.04 LTS:
libc6 2.15-0ubuntu10.14
libc6-dev 2.15-0ubuntu10.14

After a standard system update you need to reboot your computer to
make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2985-1
CVE-2013-2207, CVE-2014-8121, CVE-2014-9761, CVE-2015-1781,
CVE-2015-5277, CVE-2015-8776, CVE-2015-8777, CVE-2015-8778,
CVE-2015-8779, CVE-2016-2856, CVE-2016-3075

Package Information:
https://launchpad.net/ubuntu/+source/glibc/2.21-0ubuntu4.2
https://launchpad.net/ubuntu/+source/eglibc/2.19-0ubuntu6.8
https://launchpad.net/ubuntu/+source/eglibc/2.15-0ubuntu10.14


--M1akecbV8LB7u7K0
Content-Type: application/pgp-signature; name="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
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=vRCI
-----END PGP SIGNATURE-----

--M1akecbV8LB7u7K0--


--===============5494822111136158808==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

--
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-security-announce

--===============5494822111136158808==--
Pro-Linux
Traut euch!
Neue Nachrichten
Werbung