CVE-2025-69650
GNU Binutils thru 2.46 readelf contains a double free vulnerability when processing a crafted ELF binary with malformed relocation data. During GOT relocation handling, dump_relocations may return early without initializing the all_relocations array. As a result, process_got_section_contents() may pass an uninitialized r_symbol pointer to free(), leading to a double free and terminating the program with SIGABRT. No evidence of exploitable memory corruption or code execution was observed; the impact is limited to denial of service. NOTE: this is disputed by third parties because the observed behavior occurred only in pre-release code and did not affect any tagged version.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 7.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.52%
- Percentil entre todas las CVEs puntuadas: 42
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
🎯 Técnicas ATT&CK
Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.
- Explotación
T1190Exploit Public-Facing Applicationinitial access75 % - Impacto principal
T1499.004Application or System Exploitationimpact85 %
Vector CVSS AV:N/AC:L/PR:N/UI:N indica explotación remota sin privilegios (T1190). El double free en readelf causa SIGABRT, denegación de servicio por aplicación expuesta (T1499.004: endpoint denial of service).
Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.
🛡️ Mitigaciones ATT&CK que cubren estas técnicas
Tecnologías afectadas (1)
CWE
- CWE-415
- CWE-415
Referencias
- https://sourceware.org/bugzilla/show_bug.cgi?id=33698
- https://sourceware.org/bugzilla/show_bug.cgi?id=33700
- https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=81e90cf63a10ad11772c2437c8f2a88f1a00c739
- https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=ea4bc025abdba85a90e26e13f551c16a44bfa92
- https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=ea4bc025abdba85a90e26e13f551c16a44bfa921
- https://sourceware.org/bugzilla/show_bug.cgi?id=33698
JSON original (NVD)
Mostrar
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