U radu programskog paketa thunderbird otkrivena je ranjivost koja omogućuje napadačima napad uskraćivanjem usluga i izvršavanje proizvoljnog programskog koda.
Paket:
thunderbird 3.x
Operacijski sustavi:
Red Hat Enterprise Linux 6
Kritičnost:
6.8
Problem:
preljev međuspremnika
Iskorištavanje:
udaljeno
Posljedica:
dobivanje većih privilegija, proizvoljno izvršavanje programskog koda, uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2011-3026
Izvorni ID preporuke:
RHSA-2012:0140-01
Izvor:
Red Hat
Problem:
Uočeno je da nastaje greška u paketu libpng gdje dolazi do preljeva međuspremnika prilikom obrade PNG slika.
Posljedica:
Navedeni propust napadači mogu iskoristiti za napad uskraćivanjem usluga (DoS napad) i proizvoljno izvršavanje programskog koda s privilegijama korisnika koji je pokrenuo program.
Rješenje:
Savjetuje se instalacija ispravnog programskog paketa.
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=====================================================================
Red Hat Security Advisory
Synopsis: Critical: thunderbird security update
Advisory ID: RHSA-2012:0140-01
Product: Red Hat Enterprise Linux
Advisory URL: https://rhn.redhat.com/errata/RHSA-2012-0140.html
Issue date: 2012-02-16
CVE Names: CVE-2011-3026
=====================================================================
1. Summary:
An updated thunderbird package that fixes one security issue is now
available for Red Hat Enterprise Linux 6.
The Red Hat Security Response Team has rated this update as having critical
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) - i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64
3. Description:
Mozilla Thunderbird is a standalone mail and newsgroup client.
A heap-based buffer overflow flaw was found in the way Thunderbird handled
PNG (Portable Network Graphics) images. An HTML mail message or remote
content containing a specially-crafted PNG image could cause Thunderbird to
crash or, possibly, execute arbitrary code with the privileges of the user
running Thunderbird. (CVE-2011-3026)
All Thunderbird users should upgrade to this updated package, which
corrects this issue. After installing the update, Thunderbird must be
restarted for the changes to take effect.
4. Solution:
Before applying this update, make sure all previously-released errata
relevant to your system have been applied.
This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259
5. Bugs fixed (http://bugzilla.redhat.com/):
790737 - CVE-2011-3026 libpng: Heap-buffer-overflow in png_decompress_chunk
6. Package List:
Red Hat Enterprise Linux Desktop (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Client/en/os/SRPMS/thunderbird-3.1.18-2.el6_2.src.rpm
i386:
thunderbird-3.1.18-2.el6_2.i686.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.i686.rpm
x86_64:
thunderbird-3.1.18-2.el6_2.x86_64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/thunderbird-3.1.18-2.el6_2.src.rpm
i386:
thunderbird-3.1.18-2.el6_2.i686.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.i686.rpm
ppc64:
thunderbird-3.1.18-2.el6_2.ppc64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.ppc64.rpm
s390x:
thunderbird-3.1.18-2.el6_2.s390x.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.s390x.rpm
x86_64:
thunderbird-3.1.18-2.el6_2.x86_64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 6):
Source:
ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Workstation/en/os/SRPMS/thunderbird-3.1.18-2.el6_2.src.rpm
i386:
thunderbird-3.1.18-2.el6_2.i686.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.i686.rpm
x86_64:
thunderbird-3.1.18-2.el6_2.x86_64.rpm
thunderbird-debuginfo-3.1.18-2.el6_2.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/#package
7. References:
https://www.redhat.com/security/data/cve/CVE-2011-3026.html
https://access.redhat.com/security/updates/classification/#critical
8. Contact:
The Red Hat security contact is <Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2012 Red Hat, Inc.
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