Summary
It was discovered that checking excessively long DH keys or parameters
may be very slow. A remote attacker could possibly use this issue to
cause OpenSSL to consume resources, resulting in a denial of service.
(CVE-2023-3446)
After the fix for CVE-2023-3446 Bernd Edlinger discovered that a large
q parameter value can also trigger an overly long computation during
some of these checks. A remote attacker could possibly use this issue
to cause OpenSSL to consume resources, resulting in a denial of
service. (CVE-2023-3817)
David Benjamin discovered that generating excessively long X9.42 DH
keys or checking excessively long X9.42 DH keys or parameters may be
very slow. A remote attacker could possibly use this issue to cause
OpenSSL to consume resources, resulting in a denial of service.
(CVE-2023-5678)
Bahaa Naamneh discovered that processing a maliciously formatted
PKCS12 file may lead OpenSSL to crash leading to a potential Denial of
Service attack. (CVE-2024-0727)
Fixed packages 1
| Release | Package | Fixed in |
|---|---|---|
| Ubuntu · Pro 18.04 LTS Pro:18.04:LTS | openssl1.0 | 1.0.2n-1ubuntu5.13+esm1 |
Vulnerabilities 4
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Medium 5.5
PKCS12 Decoding crashes
Issue summary: Processing a maliciously formatted PKCS12 file may lead OpenSSL to crash leading to a potential Denial of Service attack Impact summary: Applications loading files in the PKCS12 format from untrusted sources might terminate abruptly. A file in …
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Medium 5.3
Excessive time spent checking DH keys and parameters
Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the k…
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Medium 5.3
Excessive time spent checking DH q parameter value
Issue summary: Checking excessively long DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_check(), DH_check_ex() or EVP_PKEY_param_check() to check a DH key or DH parameters may experience long delays. Where the k…
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Medium 5.3
Excessive time spent in DH check / generation with large Q parameter value
Issue summary: Generating excessively long X9.42 DH keys or checking excessively long X9.42 DH keys or parameters may be very slow. Impact summary: Applications that use the functions DH_generate_key() to generate an X9.42 DH key may experience long delays. L…