Otkriveno je više sigurnosnih propusta u radu programskog paketa Quagga. Udaljeni ih napadač može iskoristiti za izvođenje napada uskraćivanjem usluge (DoS).
Paket:
quagga 0.x
Operacijski sustavi:
openSUSE 11.3, openSUSE 11.4
Kritičnost:
6.5
Problem:
neodgovarajuće rukovanje datotekama, pogreška u programskoj funkciji, preljev međuspremnika
Propusti su posljedica pogrešaka u funkcijama "ospf6_lsa_is_changed", "ospf_flood", datoteci "ospf_packet.c", nepravilnosti u OSPFv3 implementaciji te prepisivanja spremnika na gomili u funkciji "ecommunity_ecom2str".
Posljedica:
Napadaču spomenuti nedostaci omogućuju izvođenje DoS (eng. Denial of Service) napada.
Rješenje:
Korisnicima se preporuča korištenje novih programskih rješenja.
openSUSE Security Update: quagga: fixing multiple vulnerabilities
______________________________________________________________________________
Announcement ID: openSUSE-SU-2011:1155-1
Rating: important
References: #718056 #718058 #718059 #718061 #718062
Cross-References: CVE-2011-3323 CVE-2011-3324 CVE-2011-3325
CVE-2011-3326 CVE-2011-3327
Affected Products:
openSUSE 11.4
openSUSE 11.3
______________________________________________________________________________
An update that fixes 5 vulnerabilities is now available. It
includes one version update.
Description:
This update fixes the following security issues:
- 718056: OSPF6D buffer overflow while decoding Link State
Update with Inter Area Prefix Lsa (CVE-2011-3323)
- 718058: OSPF6D DoS while decoding Database Description
packet (CVE-2011-3324)
- 718059: OSPFD DoS while decoding Hello packet
(CVE-2011-3325)
- 718061: OSPFD DoS while decoding Link State Update
(CVE-2011-3326)
- 718062: DoS while decoding EXTENDED_COMMUNITIES in
Quagga's BGP (CVE-2011-3327)
Patch Instructions:
To install this openSUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:
- openSUSE 11.4:
zypper in -t patch quagga-5276
- openSUSE 11.3:
zypper in -t patch quagga-5276
To bring your system up-to-date, use "zypper patch".
Package List:
- openSUSE 11.4 (i586 x86_64):
quagga-0.99.17-4.11.1
quagga-devel-0.99.17-4.11.1
- openSUSE 11.3 (i586 x86_64) [New Version: 0.99.17]:
quagga-0.99.17-1.11.1
quagga-devel-0.99.17-1.11.1
References:
http://support.novell.com/security/cve/CVE-2011-3323.html
http://support.novell.com/security/cve/CVE-2011-3324.html
http://support.novell.com/security/cve/CVE-2011-3325.html
http://support.novell.com/security/cve/CVE-2011-3326.html
http://support.novell.com/security/cve/CVE-2011-3327.html
https://bugzilla.novell.com/718056
https://bugzilla.novell.com/718058
https://bugzilla.novell.com/718059
https://bugzilla.novell.com/718061
https://bugzilla.novell.com/718062
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