cve/2019/CVE-2019-7148.md

CVE-2019-7148

Description

An attempted excessive memory allocation was discovered in the function read_long_names in elf_begin.c in libelf in elfutils 0.174. Remote attackers could leverage this vulnerability to cause a denial-of-service via crafted elf input, which leads to an out-of-memory exception. NOTE: The maintainers believe this is not a real issue, but instead a "warning caused by ASAN because the allocation is big. By setting ASAN_OPTIONS=allocator_may_return_null=1 and running the reproducer, nothing happens."

POC

Reference

• https://sourceware.org/bugzilla/show_bug.cgi?id=24085

Github

• https://github.com/flyrev/security-scan-ci-presentation
• https://github.com/fuzz-evaluator/MemLock-Fuzz-eval
• https://github.com/wcventure/MemLock-Fuzz