Vulnerability Monitor

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CVE-2013-4421

The buf_decompress function in packet.c in Dropbear SSH Server before 2013.59 allows remote attackers to cause a denial of service (memory consumption) via a compressed packet that has a large size when it is decompressed.

Published

2013-10-25T23:55:03.847

Last Modified

2025-04-11T00:51:21.963

Status

Deferred

Source

[email protected]

Severity

CVSSv2: 5.0 (MEDIUM)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Primary
CWE-189

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	dropbear_ssh_project	dropbear_ssh	< 2013.59	Yes

References

http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119300.html Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119323.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html Third Party Advisory ([email protected])
http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html Third Party Advisory ([email protected])
http://secunia.com/advisories/55173 Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2013/10/11/4 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/62958 Third Party Advisory, VDB Entry ([email protected])
https://matt.ucc.asn.au/dropbear/CHANGES Vendor Advisory ([email protected])
https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6f Patch, Third Party Advisory ([email protected])
https://support.citrix.com/article/CTX216642 Third Party Advisory ([email protected])
http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119300.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119323.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://secunia.com/advisories/55173 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2013/10/11/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/62958 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://matt.ucc.asn.au/dropbear/CHANGES Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6f Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.citrix.com/article/CTX216642 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)