CVE-2025-67721
HighSummary
Aircompressor to biblioteka z portami algorytmów kompresji Snappy, LZO, LZ4 i Zstandard do Javy. W wersjach 3.3 i poniżej, niewłaściwe przetwarzanie źle sformatowanych danych w implementacjach dekompresora dla Snappy i LZ4 pozwala zdalnym atakującym na odczytanie zawartości poprzednich buforów poprzez spreparowane skompresowane dane wejściowe.
Risk Assessment
Atakujący mogą uzyskać dostęp do wrażliwych danych, które mogą być ujawnione w wyniku wykorzystania tej podatności, co stanowi poważne zagrożenie dla bezpieczeństwa aplikacji, które ponownie wykorzystują ten sam bufor wyjściowy do dekompresji wielu danych wejściowych.
Recommendation
Zaleca się aktualizację do wersji 3.4 lub nowszej, aby usunąć tę podatność oraz przeglądanie kodu aplikacji w celu zapewnienia, że bufor wyjściowy nie jest ponownie wykorzystywany w sposób, który może prowadzić do wycieku danych.
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Original NVD description (English source)
Aircompressor is a library with ports of the Snappy, LZO, LZ4, and Zstandard compression algorithms to Java. In versions 3.3 and below, incorrect handling of malformed data in Java-based decompressor implementations for Snappy and LZ4 allow remote attackers to read previous buffer contents via crafted compressed input. With certain crafted compressed inputs, elements from the output buffer can end up in the uncompressed output, potentially leaking sensitive data. This is relevant for applications that reuse the same output buffer to uncompress multiple inputs. This can be the case of a web server that allocates a fix-sized buffer for performance purposes. There is similar vulnerability in GHSA-cmp6-m4wj-q63q. This issue is fixed in version 3.4.

