漏洞信息
尽管我们使用了先进的大模型技术,但其输出仍可能包含不准确或过时的信息。神龙努力确保数据的准确性,但请您根据实际情况进行核实和判断。
Vulnerability Title
Heap Use of Uninitialized Memory in GNU Emacs for Android
Vulnerability Description
GNU Emacs for Android improperly validates the table header input in sfnt_read_table_directory() in src/sfnt.c. Due to an incorrect comparison variable in the read-length check, a crafted font file that claims to contain more table directory entries than actually present causes the parser to return a struct with uninitialized heap memory in the table directory entries. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This leads to the use of uninitialized heap data in subsequent table lookups, potentially resulting in information disclosure, crashes, or arbitrary memory access on 32-bit targets. This issue is fixed after commit 7621ee1d01229d50e5c0cddea6bf0b01095a62cf
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:L/SI:L/SA:N
Vulnerability Type
CWE-1284
Vulnerability Title
GNU Emacs 输入验证错误漏洞
Vulnerability Description
GNU emacs是美国GNU基金会开源的一款可扩展的文本编辑环境。 GNU Emacs 30.2及之前版本存在输入验证错误漏洞,该漏洞源于sfnt_read_table_directory()函数未正确验证表头输入,由于读取长度检查中比较变量不正确,特制字体文件可导致解析器返回包含未初始化堆内存的结构,从而造成信息泄露、崩溃或32位目标上的任意内存访问。
CVSS Information
N/A
Vulnerability Type
N/A