SB2018020623 - Heap-based buffer overflow in linux-firmware (Alpine package)
Published: February 6, 2018
Security Bulletin ID
SB2018020623
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Heap-based buffer overflow (CVE-ID: CVE-2017-17969)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to heap-based buffer overflow in the NCompress::NShrink::CDecoder::CodeReal method. A remote attacker can trick the victim into opening a specially crafted ZIP archive, trigger memory corruption and out-of-bounds write execute arbitrary code with privileges of the current user.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=8534c21265a404ef97e1d534101899b1abd43fe1
- https://git.alpinelinux.org/aports/commit/?id=d2bfb22c8e8f67ad7d8d02704f35ec4d2a19f9b9
- https://git.alpinelinux.org/aports/commit/?id=8df17e769fc14be8892c248aa366ad2b872a838e
- https://git.alpinelinux.org/aports/commit/?id=b7d5c1819012bd9304cba1ea3d1687e389fa2f5e
- https://git.alpinelinux.org/aports/commit/?id=916b50fbdafda4e285e59c6b59805040daee9fce
- https://git.alpinelinux.org/aports/commit/?id=1e3620e1d6ab6cfff0d1ebe4600ddc44e5aa614e
- https://git.alpinelinux.org/aports/commit/?id=2c5e07e07d00696e93c338f61e2879e2b12a2172