Uočena su dva sigurnosna propusta u radu programskog paketa GnuTLS, distribuiranog s operacijskim sustavom Fedora 15. Udaljenim napadačima omogućuju izvođenje DoS napada.
Propusti su posljedica prepisivanja spremnika u funkciji "gnutls_session_get_data" te neodgovarajućeg rukovanja podacima šifriranim skupinom šifri u datoteci "gnutls_cipher.c".
Posljedica:
Napadač ih može iskoristiti za izvođenje DoS (eng. Denial of Service) napada.
Rješenje:
Korisnicima se preporuča instalacija odgovarajuće nadogradnje.
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Fedora Update Notification
FEDORA-2012-4569
2012-03-24 00:04:46
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Name : gnutls
Product : Fedora 15
Version : 2.10.5
Release : 3.fc15
URL : http://www.gnutls.org/
Summary : A TLS protocol implementation
Description :
GnuTLS is a project that aims to develop a library which provides a secure
layer, over a reliable transport layer. Currently the GnuTLS library implements
the proposed standards by the IETF's TLS working group.
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Update Information:
Important security update fixing two security issues.
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ChangeLog:
* Fri Mar 23 2012 Tomas Mraz <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 2.10.5-3
- fix CVE-2011-4128 - possible buffer overflow in
gnutls_session_get_data() (#752308)
* Fri Mar 23 2012 Tomas Mraz <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.> 2.10.5-2
- fix CVE-2012-1573 - incorrect checks when parsing packets (#805432)
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References:
[ 1 ] Bug #805432 - CVE-2012-1573 gnutls: TLS record handling issue
(GNUTLS-SA-2012-2, MU-201202-01)
https://bugzilla.redhat.com/show_bug.cgi?id=805432
[ 2 ] Bug #752308 - CVE-2011-4128 gnutls: buffer overflow in
gnutls_session_get_data() (GNUTLS-SA-2011-2)
https://bugzilla.redhat.com/show_bug.cgi?id=752308
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This update can be installed with the "yum" update program. Use
su -c 'yum update gnutls' at the command line.
For more information, refer to "Managing Software with yum",
available at http://docs.fedoraproject.org/yum/.
All packages are signed with the Fedora Project GPG key. More details on the
GPG keys used by the Fedora Project can be found at
https://fedoraproject.org/keys
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