Debian Security Advisory
DSA-2950-1 openssl -- security update
- Date Reported:
- 05 Jun 2014
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2014-0195, CVE-2014-0221, CVE-2014-0224, CVE-2014-3470.
- More information:
Multiple vulnerabilities have been discovered in OpenSSL:
Jueri Aedla discovered that a buffer overflow in processing DTLS fragments could lead to the execution of arbitrary code or denial of service.
Imre Rad discovered the processing of DTLS hello packets is susceptible to denial of service.
KIKUCHI Masashi discovered that carefully crafted handshakes can force the use of weak keys, resulting in potential man-in-the-middle attacks.
Felix Groebert and Ivan Fratric discovered that the implementation of anonymous ECDH ciphersuites is suspectible to denial of service.
Additional information can be found at http://www.openssl.org/news/secadv_20140605.txt
For the stable distribution (wheezy), these problems have been fixed in version 1.0.1e-2+deb7u10. All applications linked to openssl need to be restarted. You can use the tool checkrestart from the package debian-goodies to detect affected programs or reboot your system. There's also a forthcoming security update for the Linux kernel later the day (CVE-2014-3153), so you need to reboot anyway. Perfect timing, isn't it?
For the unstable distribution (sid), these problems will be fixed soon.
We recommend that you upgrade your openssl packages.