CVE-2020-36846
CriticalSummary
W bibliotece Brotli występuje przepełnienie bufora, które może prowadzić do awarii aplikacji. Dotyczy to wersji IO::Compress::Brotli przed 0.007, gdzie atakujący może kontrolować długość wejścia w żądaniu dekompresji 'one-shot'.
Risk Assessment
Organizacja może doświadczyć awarii aplikacji, co może prowadzić do przerwy w dostępności usług oraz potencjalnych strat finansowych.
Recommendation
Zaleca się aktualizację modułu IO::Compress::Brotli do wersji 0.007 lub nowszej. Jeśli aktualizacja nie jest możliwa, należy używać API 'streaming' zamiast 'one-shot' oraz wprowadzić ograniczenia rozmiaru chunków.
Related vulnerabilities
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- CVE-2026-44415Critical
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- CVE-2026-109109Critical
The Wavlink WL-WN530BE1-A router version 251117 contains a stack-based buffer overflow in the strcpy function of /cgi-bin/ExportAllSettings.cgi in the Settings Export CGI component. Manipulating the HTTP_COOKIE/X-Cmd argument allows remote attack.
- CVE-2026-109108Critical
The Wavlink WL-WN530BE1-A router version 251117 contains a vulnerability in the popen function of /cgi-bin/uploadVpn.cgi. Manipulating the Type argument leads to OS command injection, and the attack can be performed remotely.
- CVE-2026-108971Critical
A flaw has been found in D-Link DCS-930L B1.08B4 affecting the mpfd_decode function in bootloader_region.bin of the Emergency HTTP Recovery Server component. Manipulating the firmware argument leads to improper verification of the cryptographic signature. The attack can be performed remotely and the exploit has been published.
- CVE-2026-109758Critical
Perforce Helix Authentication Service (HAS) versions 2022.1-2025.2 retain a default SCIM bearer token that is not automatically replaced with a random value during installation. An attacker knowing this token can gain unauthorized access to the SCIM API and perform user and group operations. This issue can be chained with CVE-2026-61834, potentially leading to remote code execution.
Original NVD description (English source)
A buffer overflow, as described in CVE-2020-8927, exists in the embedded Brotli library. Versions of IO::Compress::Brotli prior to 0.007 included a version of the brotli library prior to version 1.0.8, where an attacker controlling the input length of a "one-shot" decompression request to a script can trigger a crash, which happens when copying over chunks of data larger than 2 GiB. It is recommended to update your IO::Compress::Brotli module to 0.007 or later. If one cannot update, we recommend to use the "streaming" API as opposed to the "one-shot" API, and impose chunk size limits.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

