Buffer overflow in FreeBSD
CVE-2001-0554
Buffer overflow in BSD-based telnetd telnet daemon on various operating systems allows remote attackers to execute arbitrary commands via a set of options including AYT (Are You There), which is not properly handled by the telrcv function.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v2 metric
CVSS v2 base score 10.0 (High). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.387 (98.5th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.385 · newest: 0.387 · change: +0.003
Affected products
- FreeBSD — versions 2.0, 2.0.1, 2.0.5
- IBM Aix — versions 4.3, 4.3.1, 4.3.2
- Mit Kerberos — versions 1.0
- Mit Kerberos 5 — versions 1.1, 1.1.1, 1.2
- NetBSD — versions 1.0, 1.1, 1.2
- Netkit Linux — versions 0.10, 0.11, 0.12
- OpenBSD — versions 2.0, 2.1, 2.2
- Sgi Irix — versions 6.5
- Sun Solaris — versions 2.6
- Sun Sunos — versions 5.0, 5.1, 5.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- distro.conectiva.com.br/atualizacoes/ (vendor-advisory, Broken Link)
- www.linux-mandrake.com/en/security/2001/MDKSA-2001-068.php3 (vendor-advisory, Broken Link)
- www.ciac.org/ciac/bulletins/l-131.shtml (government-resource, Broken Link, third-party-advisory)
- ftp.support.compaq.com/patches/.new/html/SSRT0745U.shtml (vendor-advisory, Broken Link)
- exchange.xforce.ibmcloud.com/vulnerabilities/6875 (VDB Entry, Third Party Advisory, vdb-entry)
- www.osvdb.org/809 (vdb-entry, Broken Link)
- online.securityfocus.com/advisories/3476 (vendor-advisory, VDB Entry, Third Party Advisory, Broken Link)
- online.securityfocus.com/archive/1/199496 (mailing-list, VDB Entry, Third Party Advisory, Broken Link)
- online.securityfocus.com/archive/1/203000 (mailing-list, VDB Entry, Third Party Advisory, Broken Link)
- www.securityfocus.com/bid/3064 (Exploit, Patch, VDB Entry, Third Party Advisory, vdb-entry, Vendor Advisory)
Frequently asked questions
- What is CVE-2001-0554?
- CVE-2001-0554 is a vulnerability in FreeBSD, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). Published 2001-08-14.
- Is CVE-2001-0554 known to be exploited?
- 8 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.