SB2019012433 - Out-of-bounds read in busybox (Alpine package)
Published: January 24, 2019
Security Bulletin ID
SB2019012433
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Out-of-bounds read (CVE-ID: CVE-2019-5747)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in udhcp components (consumed by the DHCP server, client, and/or relay). A remote attacker can leak sensitive information from the stack by sending a crafted DHCP message.
Remediation
Install update from vendor's website.
References
- https://git.alpinelinux.org/aports/commit/?id=a7d4d1281579abba54a72fff33a4e45cab70182e
- https://git.alpinelinux.org/aports/commit/?id=0c2717afab5d95eeee33ad6e5ed596b99f2cffc2
- https://git.alpinelinux.org/aports/commit/?id=397f0cd902eaadce3b74e1e3021e941d9bb6ba72
- https://git.alpinelinux.org/aports/commit/?id=cf43a775225bcace5eda5940576e46caac38d471