#VU21329 Out-of-bounds write in E2fsprogs - CVE-2019-5094
Published: September 25, 2019
Vulnerability identifier: #VU21329
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear
CVE-ID: CVE-2019-5094
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
E2fsprogs
E2fsprogs
Software vendor:
e2fsprogs.sourceforge.net
e2fsprogs.sourceforge.net
Description
The vulnerability allows a local user to escalate privileges on the vulnerable system.
The vulnerability exists due to a boundary error when processing untrusted input in the quota file functionality. A local user can send a specially crafted xt4 partition, trigger out-of-bounds write on the heap and execute arbitrary code on the target system.
Note: An attacker can corrupt a partition to trigger this vulnerability.
Remediation
Install updates from vendor's website.