Vulnerability Information
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Vulnerability Title
HTSlib CRAM decoder has a NULL Pointer Dereference
Vulnerability Description
HTSlib is a library for reading and writing bioinformatics file formats. CRAM is a compressed format which stores DNA sequence alignment data using a variety of encodings and compression methods. While most alignment records store DNA sequence and quality values, the format also allows them to omit this data in certain cases to save space. Due to some quirks of the CRAM format, it is necessary to handle these records carefully as they will actually store data that needs to be consumed and then discarded. Unfortunately the `CONST`, `XPACK` and `XRLE` encodings did not properly implement the interface needed to do this. Trying to decode records with omitted sequence or quality data using these encodings would result in an attempt to write to a NULL pointer. Exploiting this bug causes a NULL pointer dereference. Typically this will cause the program to crash. Versions 1.23.1, 1.22.2 and 1.21.1 include fixes for this issue. There is no workaround for this issue.
CVSS Information
N/A
Vulnerability Type
空指针解引用
Vulnerability Title
HTSlib 代码问题漏洞
Vulnerability Description
HTSlib是samtools开源的一个C语言的库文件。 HTSlib 1.23.1之前版本、1.22.2之前版本和1.21.1之前版本存在代码问题漏洞，该漏洞源于CONST、XPACK和XRLE编码未正确处理接口，可能导致空指针取消引用。
CVSS Information
N/A
Vulnerability Type
N/A