Improper Input Validation Affecting quagga package, versions <0.96.4x-4


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.59% (88th percentile)

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  • Snyk IDSNYK-DEBIAN9-QUAGGA-319790
  • published15 Dec 2003
  • disclosed15 Dec 2003

Introduced: 15 Dec 2003

CVE-2003-0795  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade Debian:9 quagga to version 0.96.4x-4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream quagga package and not the quagga package as distributed by Debian. See How to fix? for Debian:9 relevant fixed versions and status.

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 Scores

version 3.1