Memory corruption in FreeBSD
Priority MEDIUM 48CWE-119Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
In FreeBSD before 11.2-STABLE(r348229), 11.2-RELEASE-p7, 12.0-STABLE(r342228), and 12.0-RELEASE-p1, insufficient validation of network-provided data in bootpd may make it possible for a malicious attacker to craft a bootp packet which could cause a stack buffer overflow. It is possible that the buffer overflow could lead to a Denial of Service or remote code execution.
Why it matters now
EPSS 0.03519 89th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| FreeBSD | FreeBSD | FreeBSD 11.2 before 11.2-RELEASE-p7 and 12.0 before 12.0-RELEASE-p1 | — | No fix listed | CNA |
- FreeBSD VendorFreeBSD Affected FreeBSD 11.2 before 11.2-RELEASE-p7 and 12.0 before 12.0-RELEASE-p1 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:* | 11.2 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:* | 11.2 p2 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:* | 11.2 p3 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:* | 11.2 p4 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:* | 11.2 p5 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:* | 11.2 p6 | Vulnerable | FreeBSD |
| cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:* | 12.0 | Vulnerable | FreeBSD |
- cpe:2.3:o:freebsd:freebsd:11.2:-:*:*:*:*:*:* Versions 11.2 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:11.2:p2:*:*:*:*:*:* Versions 11.2 p2 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:11.2:p3:*:*:*:*:*:* Versions 11.2 p3 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:11.2:p4:*:*:*:*:*:* Versions 11.2 p4 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:11.2:p5:*:*:*:*:*:* Versions 11.2 p5 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:11.2:p6:*:*:*:*:*:* Versions 11.2 p6 Vulnerable ·FreeBSD
- cpe:2.3:o:freebsd:freebsd:12.0:-:*:*:*:*:*:* Versions 12.0 Vulnerable ·FreeBSD
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-17161
- 2026-10-03 Alias added: GHSA-84wx-rw6h-3h88
References
Patch 1
More Freebsd vulnerabilities
- TI-2011-04182 Buffer overflow in libtelnet/encrypt.c in telnetd in FreeBSD 7.3 through 9.0, MIT… CVSS 2.0HIGH 10.0
- TI-2007-03684 Integer overflow in print-bgp.c in the BGP dissector in tcpdump 3.9.6 and earlier allows… CVSS 3.1CRITICAL 9.8
- TI-2002-00376 Integer overflow in xdr_array function in RPC servers for operating systems that use… CVSS 3.1CRITICAL 9.8
- TI-2024-05929 Openssh: regresshion - race condition in ssh allows rce/dos CVSS 3.1HIGH 8.1
- TI-2003-00437 Off-by-one error in the fb_realpath() function, as derived from the realpath function in… CVSS 3.1CRITICAL 9.8
- TI-2003-00642 The prescan function in Sendmail 8.12.9 allows remote attackers to execute arbitrary code… CVSS 2.0HIGH 10.0
Sources
- CVE-2018-17161 · CVE Program
- CVE-2018-17161 · NVD
- FIRST EPSS
- GHSA-84wx-rw6h-3h88 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences