Debian je objavio reviziju upozorenja oznake DSA-2237-1, prvi put objavljenog 16. svibnja 2011., u kojem se otklanjaju dva propusta programskog paketa APR koji mogu dovesti do izvođenja DoS napada.
Paket:
apr 1.2.x, apr 1.3.X, apr 1.4.x
Operacijski sustavi:
Debian Linux 4.0 (etch), Debian Linux 5.0 (lenny), Debian Linux 6.0 (squeeze)
Kritičnost:
3
Problem:
pogreška u programskoj funkciji
Iskorištavanje:
udaljeno
Posljedica:
uskraćivanje usluga (DoS)
Rješenje:
programska zakrpa proizvođača
CVE:
CVE-2011-0419, CVE-2011-1928
Izvorni ID preporuke:
DSA-2237-2
Izvor:
Debian
Problem:
U izvornom upozorenju se spominju problemi APR paketa, točnije ranjivosti u radu "apr_fnmatch()" funkcije. Revizija je objavljena zbog izdavanja novih programskih zakrpa.
Posljedica:
Navedeni je propust moguće iskoristiti za izvođenje napada uskraćivanja usluge (eng. Denial of Service).
Rješenje:
Revizijom je otklonjen novonastali problem ranjivog paketa, te se svi korisnici upućuju na primjenu dostupne nadogradnje.
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Debian Security Advisory DSA-2237-2 Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
http://www.debian.org/security/ Stefan Fritsch
May 21, 2011 http://www.debian.org/security/faq
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Package : apr
Vulnerability : denial of service
Problem type : remote
Debian-specific: no
CVE ID : CVE-2011-0419 CVE-2011-1928
Debian bug : 627182
The recent APR update DSA-2237-1 introduced a regression that could
lead to an endless loop in the apr_fnmatch() function, causing a
denial of service. This update fixes this problem (CVE-2011-1928).
For reference, the description of the original DSA, which fixed
CVE-2011-0419:
A flaw was found in the APR library, which could be exploited through
Apache HTTPD's mod_autoindex. If a directory indexed by mod_autoindex
contained files with sufficiently long names, a remote attacker could
send a carefully crafted request which would cause excessive CPU
usage. This could be used in a denial of service attack.
For the oldstable distribution (lenny), this problem has been fixed in
version 1.2.12-5+lenny4.
For the stable distribution (squeeze), this problem has been fixed in
version 1.4.2-6+squeeze2.
For the testing distribution (wheezy), this problem will be fixed in
version 1.4.5-1.
For the unstable distribution (sid), this problem will be fixed in
version 1.4.5-1.
We recommend that you upgrade your apr packages and restart the
apache2 server.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/
Mailing list: Ova e-mail adresa je zaštićena od spambota. Potrebno je omogućiti JavaScript da je vidite.
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