VulnerabilityModified
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.
MEDIUM 5.0EPSS 6.42%
Does this matter?
Lower severity and a low EPSS score (6.42%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
- EPSS
- 6.42% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-189
- Affected
- dropbear ssh project/dropbear ssh
- Source
- secalert@redhat.com
References
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119300.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119323.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.htmlThird Party Advisory
- http://secunia.com/advisories/55173Third Party Advisory
- http://www.openwall.com/lists/oss-security/2013/10/11/4Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/62958Third Party Advisory, VDB Entry
- https://matt.ucc.asn.au/dropbear/CHANGESVendor Advisory
- https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6fPatch, Third Party Advisory
- https://support.citrix.com/article/CTX216642Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119300.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2013-October/119323.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2013-10/msg00061.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2013-11/msg00046.htmlThird Party Advisory
- http://secunia.com/advisories/55173Third Party Advisory
- http://www.openwall.com/lists/oss-security/2013/10/11/4Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/62958Third Party Advisory, VDB Entry
- https://matt.ucc.asn.au/dropbear/CHANGESVendor Advisory
- https://secure.ucc.asn.au/hg/dropbear/rev/0bf76f54de6fPatch, Third Party Advisory
- https://support.citrix.com/article/CTX216642Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.