GSA_kwCzR0hTQS12eHJoLWNwZzctOHZqcs4AAxfp

High EPSS: 0.00449% (0.6251 Percentile) EPSS:

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openssl-src subject to NULL dereference validating DSA public key

Affected Packages	Affected Versions	Fixed Versions
cargo:openssl-src	>= 300.0.0, < 300.0.12	300.0.12
13 Dependent packages 3,600 Dependent repositories 44,156,620 Downloads total Affected Version Ranges All affected versions 300.0.0, 300.0.1, 300.0.2, 300.0.3, 300.0.4, 300.0.5, 300.0.6, 300.0.7, 300.0.8, 300.0.9, 300.0.10, 300.0.11 All unaffected versions 110.0.0, 110.0.0, 110.0.1, 110.0.2, 110.0.3, 110.0.4, 110.0.5, 110.0.6, 110.0.7, 111.0.0, 111.0.1, 111.1.0, 111.1.1, 111.2.1, 111.3.0, 111.4.0, 111.5.0, 111.6.0, 111.6.1, 111.7.0, 111.8.0, 111.8.1, 111.9.0, 111.10.0, 111.10.1, 111.10.2, 111.11.0, 111.12.0, 111.13.0, 111.14.0, 111.15.0, 111.16.0, 111.17.0, 111.18.0, 111.19.0, 111.20.0, 111.21.0, 111.22.0, 111.23.0, 111.24.0, 111.25.0, 111.25.1, 111.25.2, 111.25.3, 111.26.0, 111.27.0, 111.28.0, 111.28.1, 111.28.2, 300.0.12, 300.0.13, 300.1.0, 300.1.1, 300.1.2, 300.1.3, 300.1.4, 300.1.5, 300.1.6, 300.2.0, 300.2.1, 300.2.2, 300.2.3, 300.3.0, 300.3.1, 300.3.2, 300.4.0, 300.4.1, 300.4.2, 300.5.0, 300.5.1

An invalid pointer dereference on read can be triggered when an application tries to check a malformed DSA public key by the EVP_PKEY_public_check() function. This will most likely lead to an application crash. This function can be called on public keys supplied from untrusted sources which could allow an attacker to cause a denial of service attack.

The TLS implementation in OpenSSL does not call this function but applications might call the function if there are additional security requirements imposed by standards such as FIPS 140-3.

References:

ecosyste.ms

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GSA_kwCzR0hTQS12eHJoLWNwZzctOHZqcs4AAxfp

openssl-src subject to NULL dereference validating DSA public key

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