SB2019112721 - Information disclosure in FreeBSD
Published: November 27, 2019 Updated: July 17, 2020
Security Bulletin ID
SB2019112721
Severity
Medium
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) Information disclosure (CVE-ID: CVE-2011-2480)
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Information Disclosure vulnerability in the 802.11 stack, as used in FreeBSD before 8.2 and NetBSD when using certain non-x86 architectures. A signedness error in the IEEE80211_IOC_CHANINFO ioctl allows a local unprivileged user to cause the kernel to copy large amounts of kernel memory back to the user, disclosing potentially sensitive information.
Remediation
Install update from vendor's website.