漏洞信息
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Vulnerability Title
Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack
Vulnerability Description
Perl versions before 5.40.5-RC1, from 5.41.0 before 5.42.3-RC1, from 5.43.0 before 5.43.11 have an integer overflow in S_measure_struct leading to an out-of-bounds heap read in pack and unpack.
S_measure_struct adds each item's size times its repeat count to a running total with no overflow check, so a large repeat count in a pack or unpack template wraps the signed SSize_t total negative. The @, X, and x position codes then guard their moves with a signed length comparison that passes when the length is negative, advancing the buffer pointer out of bounds.
A template derived from untrusted input can read heap memory past the buffer and return it to the caller.
CVSS Information
N/A
Vulnerability Type
整数溢出或超界折返
Vulnerability Title
SHAY perl 缓冲区错误漏洞
Vulnerability Description
SHAY perl是SHAY的编程语言解释器。 SHAY perl 5.43.10及之前版本存在安全漏洞,该漏洞源于S_measure_struct函数中存在整数溢出,导致在pack和unpack操作中发生越界堆读取,可能读取缓冲区后的堆内存并返回给调用者。
CVSS Information
N/A
Vulnerability Type
N/A