CVE-2013-6462
HighSummary
W funkcji bdfReadCharacters w pliku bitmap/bdfread.c w bibliotece X.Org libXfont w wersjach od 1.1 do 1.4.6 występuje przepełnienie bufora na stosie. Umożliwia to zdalnym atakującym spowodowanie awarii usługi lub potencjalne wykonanie dowolnego kodu poprzez długi ciąg w nazwie znaku w pliku czcionki BDF.
Risk Assessment
Atakujący może wykorzystać tę podatność do zdalnego wywołania awarii systemu lub uruchomienia złośliwego kodu, co stanowi poważne zagrożenie dla bezpieczeństwa organizacji.
Recommendation
Zaleca się aktualizację biblioteki X.Org libXfont do najnowszej wersji, aby usunąć tę podatność oraz monitorowanie systemów pod kątem nieautoryzowanych prób dostępu.
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Original NVD description (English source)
Stack-based buffer overflow in the bdfReadCharacters function in bitmap/bdfread.c in X.Org libXfont 1.1 through 1.4.6 allows remote attackers to cause a denial of service (crash) or possibly execute arbitrary code via a long string in a character name in a BDF font file.