UBUNTU-CVE-2026-31970

HTSlib is a library for reading and writing bioinformatics file formats. GZI files are used to index block-compressed GZIP BGZF files. In the GZI loading function, bgzfindexloadhfile, it was possible to trigger an integer overflow, leading to an under- or zero-sized buffer being allocated to stor...

CVE-2026-31970 HTSlib BGZF index file reader has a heap buffer overflow

HTSlib is a library for reading and writing bioinformatics file formats. GZI files are used to index block-compressed GZIP BGZF files. In the GZI loading function, bgzfindexloadhfile, it was possible to trigger an integer overflow, leading to an under- or zero-sized buffer being allocated to stor...

CVE-2026-31970

Summary: HTSlib’s GZI index loading path (bgzf_index_load_hfile) may overflow a heap buffer due to an integer overflow, causing a heap buffer overflow. This can crash the application, corrupt data, or potentially allow arbitrary code execution when a crafted GZI file is opened. Affected component...

HTSlib 安全漏洞

HTSlib is a C-language library file developed by samtools. Versions of HTSlib prior to 1.23.1, 1.22.2, and 1.21.1 have security vulnerabilities. These vulnerabilities stem from the bgzfindexloadhfile function, which involves integer overflows, potentially leading to heap buffer overflows...