漏洞信息
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Vulnerability Title
Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol
Vulnerability Description
Imager::File::JPEG versions before 1.003 for Perl leak heap memory when reading a JPEG with repeated APP13 markers in i_readjpeg_wiol.
i_readjpeg_wiol walks the marker list libjpeg returns and, for each APP13 marker, allocates a new buffer with *iptc_itext = mymalloc(...) and overwrites the previous pointer without freeing it. Only the final payload is later turned into a Perl scalar and freed, so a JPEG with N such markers leaks the first N-1 payloads on every read.
In a long-lived process, such as an upload or thumbnailing service, repeated reads accumulate these leaks and exhaust available memory, a denial of service.
The same handler ships bundled in the Imager distribution, where versions before 1.032 are affected and the fix ships in 1.032.
CVSS Information
N/A
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Vulnerability Title
TONYC Imager::File::JPEG 资源管理错误漏洞
Vulnerability Description
TONYC Imager::File::JPEG是TONYC个人开发者的一款JPEG图像处理模块。 TONYC Imager::File::JPEG 1.003之前版本存在资源管理错误漏洞,该漏洞源于在i_readjpeg_wiol中读取带有重复APP13标记的JPEG文件时,对每个APP13标记分配新缓冲区后未释放先前指针,造成堆内存泄漏,在长期运行过程中累积泄漏并耗尽可用内存,导致拒绝服务。
CVSS Information
N/A
Vulnerability Type
N/A