The read_binary function in buffer.c in pgpdump before 0.30 allows context-dependent attackers to cause a denial of service (infinite loop and CPU consumption) via crafted input, as demonstrated by the \xa3\x03 string.

The read_binary function in buffer.c in pgpdump, a PGP packet visualizer, allows context-dependent attackers to cause a denial of service (infinite loop and CPU consumption) via crafted input. This was assigned CVE-2016-4021.

Also, the read_radix64 function the might read data from beyond the end of a buffer from crafted input.

For Debian 7 'Wheezy', these problems have been fixed in version 0.27-1+deb7u1.

For Debian 8 'Jessie', these problems will be fixed in version 0.28-1+deb8u1, part of the upcoming point release

For Debian 9 'Stretch' and 'Sid', these problems have been fixed in version 0.31-0.1

We recommend that you upgrade your pgpdump packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

CVE-2016-4021 pgpdump: endless loop parsing specially crafted input

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
96184	Debian DLA-768-1 : pgpdump security update	Nessus	Debian Local Security Checks	high
91064	Fedora 22 : pgpdump-0.30-1.fc22 (2016-6fd7a31d36)	Nessus	Fedora Local Security Checks	high
91061	Fedora 23 : pgpdump-0.30-1.fc23 (2016-5733ad20f5)	Nessus	Fedora Local Security Checks	high
90964	Fedora 24 : pgpdump-0.30-1.fc24 (2016-8f4b54b005)	Nessus	Fedora Local Security Checks	high

Detections

Analytics

CVE-2016-4021

high

Tenable Plugins

high

high

high

high