CVE-2023-0217
NULL dereference validating DSA public key
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
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.
A flaw was found in OpenSSL. 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, most likely leading 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.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2023-01-11 CVE Reserved
- 2023-02-07 CVE Published
- 2024-08-02 CVE Updated
- 2024-09-29 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-476: NULL Pointer Dereference
CAPEC
References (5)
URL | Tag | Source |
---|---|---|
https://security.gentoo.org/glsa/202402-08 |
URL | Date | SRC |
---|
URL | Date | SRC |
---|---|---|
https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=23985bac83fd50c8e29431009302b5442f985096 | 2024-02-04 |
URL | Date | SRC |
---|---|---|
https://www.openssl.org/news/secadv/20230207.txt | 2024-02-04 | |
https://access.redhat.com/security/cve/CVE-2023-0217 | 2023-03-14 | |
https://bugzilla.redhat.com/show_bug.cgi?id=2164499 | 2023-03-14 |
Affected Vendors, Products, and Versions
Vendor | Product | Version | Other | Status | ||||||
---|---|---|---|---|---|---|---|---|---|---|
Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
Openssl Search vendor "Openssl" | Openssl Search vendor "Openssl" for product "Openssl" | >= 3.0.0 <= 3.0.7 Search vendor "Openssl" for product "Openssl" and version " >= 3.0.0 <= 3.0.7" | - |
Affected
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