CVE-2003-0795
The vty layer in Quagga before 0.96.4, and Zebra 0.93b and earlier, does not verify that sub-negotiation is taking place when processing the SE marker, which allows remote attackers to cause a denial of service (crash) via a malformed telnet command to…
Does this matter?
Lower severity and a low EPSS score (8.23%). Track it; it rarely justifies an emergency change on its own.
Description
The vty layer in Quagga before 0.96.4, and Zebra 0.93b and earlier, does not verify that sub-negotiation is taking place when processing the SE marker, which allows remote attackers to cause a denial of service (crash) via a malformed telnet command to the telnet CLI port, which may trigger a null dereference.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 8.23% probability · 95th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- gnu/zebra · quagga/quagga · sgi/propack
- Source
- cve@mitre.org
References
- http://marc.info/?l=bugtraq&m=106883387304266&w=2
- http://secunia.com/advisories/10563Vendor Advisory
- http://www.debian.org/security/2004/dsa-415Patch, Vendor Advisory
- http://www.redhat.com/support/errata/RHSA-2003-305.htmlPatch, Vendor Advisory
- http://www.redhat.com/support/errata/RHSA-2003-307.htmlPatch, Vendor Advisory
- http://marc.info/?l=bugtraq&m=106883387304266&w=2
- http://secunia.com/advisories/10563Vendor Advisory
- http://www.debian.org/security/2004/dsa-415Patch, Vendor Advisory
- http://www.redhat.com/support/errata/RHSA-2003-305.htmlPatch, Vendor Advisory
- http://www.redhat.com/support/errata/RHSA-2003-307.htmlPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.