CVE-2016-4021
First published: Thu May 26 2016(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Fedora | =22 | |
| Fedora | =23 | |
| Fedora | =24 | |
| pgpdump | <=0.29 |
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Reference Links
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183750.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184617.html
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/184689.html
- http://seclists.org/bugtraq/2016/Apr/99
- https://github.com/kazu-yamamoto/pgpdump/pull/16
- https://www.syss.de/fileadmin/dokumente/Publikationen/Advisories/SYSS-2016-030.txt
Frequently Asked Questions
What is the severity of CVE-2016-4021?
CVE-2016-4021 has been classified as a denial of service vulnerability due to its ability to cause CPU exhaustion.
How do I fix CVE-2016-4021?
To mitigate CVE-2016-4021, upgrade pgpdump to version 0.30 or later.
Which software versions are affected by CVE-2016-4021?
CVE-2016-4021 affects pgpdump versions prior to 0.30 and Fedora releases 22, 23, and 24.
What impact does CVE-2016-4021 have on systems?
CVE-2016-4021 can lead to an infinite loop and excessive CPU consumption, potentially disrupting service availability.
Who can exploit CVE-2016-4021?
CVE-2016-4021 can be exploited by context-dependent attackers using specially crafted input.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/author
- agent/weakness
- agent/last-modified-date
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/fedoraproject
- canonical/fedora
- version/fedora/22
- version/fedora/23
- version/fedora/24
- vendor/pgpdump project
- canonical/pgpdump
- version/pgpdump/0.29