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libexif flere sårbarheder Advisory Available in English  Advisory Available in German 

Secunia Advisory: SA28076  
Udsendt: 2007-12-20
Sidste Opdt.: 2007-12-21

Kritisk:
Moderat kritisk
Betydning: DoS
Systemadgang
Hvor: Fra Internet
Løsning Status: Producent Alternativ Løsning

Software:libexif 0.x

CVE reference:CVE-2007-6351 (Secunia mirror)
CVE-2007-6352 (Secunia mirror)



Beskrivelse:
Der er rapporteret nogle sårbarheder i libexif, som kan udnyttes af ondsindede personer til at udføre et DoS (Denial of Service) og kompromittere et sårbart system.

1) Et heltals-overflow i "exif_data_load_data_thumbnail()" funktionen i exif-data.c under håndteringen af exif-billedtags kan udnyttes til at korrumpere hukommelsen og kan muliggøre eksekvering af vilkårlig kode.

2) En uendelig rekursionsfejl i funktionen "exif_loader_write()" i exif-loader.c under håndteringen af exif-billedtags kan udnyttes til at crashe en applikation.

Løsning:
Rettet i CVS-depotet.

Rapporteret af / Kredit:
Producenten krediterer Meder Kydyraliev, Google Security Team.

Rapporteret i et Red Hat advisory.

Original Advisory:
https://rhn.redhat.com/errata/RHSA-2007-1165.html
http://rhn.redhat.com/errata/RHSA-2007-1166.html



Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

4 Relaterede Secunia Advisories

1. libexif EXIF information heltals-overflow sårbarhed
2. libexif EXIF håndtering af information sårbarhed
3. libexif "exif_data_load_data_content()" Denial of Service
4. libexif EXIF tag-struktur validering sårbarhed


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