CVE-2013-7373

Severity: high (CVSS 7.5 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2014-04-29 · updated 2026-06-17
Weakness: CWE-200

Description

Android before 4.4 does not properly arrange for seeding of the OpenSSL PRNG, which makes it easier for attackers to defeat cryptographic protection mechanisms by leveraging use of the PRNG within multiple applications.

Affected products

Android: through 4.3.1; 1.0, 1.1, 1.5, 1.6, 2.0, 2.0.1 (+33)

References

http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html
http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/
http://marc.info/?l=openssl-dev&m=130289811108150&w=2
http://marc.info/?l=openssl-dev&m=130298304903422&w=2
http://www.reddit.com/r/Android/comments/1k6f03/due_to_a_serious_encryptionrng_flaw_in_android/cblvum5
http://android-developers.blogspot.com.au/2013/08/some-securerandom-thoughts.html
http://emboss.github.io/blog/2013/08/21/openssl-prng-is-not-really-fork-safe/
http://marc.info/?l=openssl-dev&m=130289811108150&w=2
http://marc.info/?l=openssl-dev&m=130298304903422&w=2
http://www.reddit.com/r/Android/comments/1k6f03/due_to_a_serious_encryptionrng_flaw_in_android/cblvum5

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