CVE-2011-1739
The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access…
Does this matter?
Lower severity and a low EPSS score (1.28%). Track it; it rarely justifies an emergency change on its own.
Description
The makemask function in mountd.c in mountd in FreeBSD 7.4 through 8.2 does not properly handle a -network field specifying a CIDR block with a prefix length that is not an integer multiple of 8, which allows remote attackers to bypass intended access restrictions in opportunistic circumstances via an NFS mount request.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:N
- EPSS
- 1.28% probability · 68th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- freebsd/freebsd
- Source
- secteam@freebsd.org
References
- http://secunia.com/advisories/44307Vendor Advisory
- http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc
- http://securitytracker.com/id?1025425
- http://www.securityfocus.com/bid/47517
- http://www.vupen.com/english/advisories/2011/1076Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66981
- http://secunia.com/advisories/44307Vendor Advisory
- http://security.FreeBSD.org/advisories/FreeBSD-SA-11:01.mountd.asc
- http://securitytracker.com/id?1025425
- http://www.securityfocus.com/bid/47517
- http://www.vupen.com/english/advisories/2011/1076Vendor Advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/66981
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.