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CVE-2013-4421

Good to know:

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Date: October 25, 2013

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.

Language: C

Severity Score

Related Resources (14)

https://nvd.nist.gov/vuln/detail/CVE-2013-4421
http://secunia.com/advisories/55173
http://www.openwall.com/lists/oss-security/2013/10/11/4
http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.html
https://matt.ucc.asn.au/dropbear/CHANGES
http://www.securityfocus.com/bid/62958
https://security-tracker.debian.org/tracker/CVE-2013-4421
http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119323.html
http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.html
http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119300.html
https://people.canonical.com/~ubuntu-security/cve/CVE-2013-4421
https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6f
https://support.citrix.com/article/CTX216642
https://www.mend.io/vulnerability-database/CVE-2013-4421

Severity Score

Weakness Type (CWE)

Numeric Errors

CWE-189

Top Fix

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Upgrade Version

Upgrade to version 2013.59

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): LOW

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): PARTIAL
Additional information:

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