CVE-2011-1925
nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by
02 Description
nbd-server.c in Network Block Device (nbd-server) 2.9.21 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by causing a negotiation failure, as demonstrated by
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 2.52% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 84.4% of scored records. A rank, not a probability.
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-16.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2011-05-31 20:00Z15 YR AGO
- Last updated
- 2024-08-06 22:46Z2 YR AGO
- Reserved
- 2011-05-09
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- No CWE assigned
- Data version
- 5.1
- Document digest
- 81a4b33cca057afa7f752d074277d8cc3dcca97d502289592ea180d546da70fd
05 Affected products
06 References
- bugs.debian.orghttp://bugs.debian.org/cgi-bin/bugreport.cgi?bug=627042.
- security.gentoo.orgGLSA-201206-35http://security.gentoo.org/glsa/glsa-201206-35.xml
- nbd.git.sourceforge.nethttp://nbd.git.sourceforge.net/git/gitweb.cgi?p=nbd/nbd%3Ba=commitdiff%3Bh=ebbbe0b3ce5393fa42a259f5e03d549508586aaa
- www.openwall.com[oss-security] 20110517 CVE request: nbd-serverhttp://www.openwall.com/lists/oss-security/2011/05/17/1
- exchange.xforce.ibmcloud.comnetworkblock-negotiation-dos(67502)https://exchange.xforce.ibmcloud.com/vulnerabilities/67502
- www.securityfocus.com47884http://www.securityfocus.com/bid/47884
07 Fixed in
Debian 12
- nbd Fixed in 1:2.9.22-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- nbd Fixed in 1:2.9.22-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- nbd Fixed in 1:2.9.22-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.