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CVE-2019-1549

Published: August 31, 2023Last modified: August 31, 2023

Description

OpenSSL 1.1.1 introduced a rewritten random number generator (RNG). This was intended to include protection in the event of a fork() system call in order to ensure that the parent and child processes did not share the same RNG state. However this protection was not being used in the default case. A partial mitigation for this issue is that the output from a high precision timer is mixed into the RNG state so the likelihood of a parent and child process sharing state is significantly reduced. If an application already calls OPENSSL_init_crypto() explicitly using OPENSSL_INIT_ATFORK then this problem does not occur at all. Fixed in OpenSSL 1.1.1d (Affected 1.1.1-1.1.1c).

Severity score breakdown

ParameterValue
Base score5.3
Attack VectorNETWORK
Attack complexityLOW
Privileges requiredNONE
User interactionNONE
ScopeUNCHANGED
ConfidentialityLOW
Integrity impactNONE
Availability impactNONE
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Status

ProductReleasePackageStatus
Alpaquita Linux23 LTSopensslNot affected (3.0.10-r0)
StreamopensslNot affected (3.1.2-r0)

References

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