Heap-based buffer overflow in the verify_vbr_checksum function in exfatfsck in exfat-utils before 1.2.1 allows remote attackers to cause a denial of service (infinite loop) or possibly execute arbitrary code via a crafted filesystem.
The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.
| Link | Tags |
|---|---|
| https://github.com/relan/exfat/commit/2e86ae5f81da11f11673d0546efb525af02b7786 | issue tracking third party advisory patch |
| https://security.gentoo.org/glsa/201612-31 | vdb entry third party advisory patch vendor advisory |
| https://blog.fuzzing-project.org/25-Heap-overflow-and-endless-loop-in-exfatfsck-exfat-utils.html | third party advisory |
| https://github.com/relan/exfat/issues/5 | issue tracking third party advisory patch |
| http://www.securityfocus.com/bid/77307 | vdb entry third party advisory |
| http://www.openwall.com/lists/oss-security/2015/10/29/13 | mailing list third party advisory patch |