CVE-2009-0127
Published: 2009-01-15
Last Modified: 2021-06-07
CVE Author: NIST National Vulnerability Database
CVE Assigner: cve@mitre.org
** DISPUTED ** M2Crypto does not properly check the return value from the OpenSSL EVP_VerifyFinal, DSA_verify, ECDSA_verify, DSA_do_verify, and ECDSA_do_verify functions, which might allow remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature, a similar vulnerability to CVE-2008-5077. NOTE: a Linux vendor disputes the relevance of this report to the M2Crypto product because "these functions are not used anywhere in m2crypto."
| Severity | Medium |
| Base Score | 5/10 |
| Exploit Score | 10/10 |
| Access Vector | Network |
| Access Complexity | Low |
| Authentication | None |
| Impact Score | 2.9/10 |
| Confidentiality Impact | Partial |
| Availability Impact | None |
| Integrity Impact | None |
| Vector String | AV:N/AC:L/Au:N/C:P/I:N/A:N |
NIST has not assigned a CVSSv3.1 Score.
| CPE | Vulnerable | Start | Excluding |
|---|---|---|---|
| cpe:2.3:a:heikkitoivonen:m2crypto:-:*:*:*:*:*:*:* | Yes | - | - |
http://openwall.com/lists/oss-security/2009/01/12/4
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=511515
https://bugzilla.redhat.com/show_bug.cgi?id=479676
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