Vulnerabilities > CVE-2010-0731 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in GNU Gnutls
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
The gnutls_x509_crt_get_serial function in the GnuTLS library before 1.2.1, when running on big-endian, 64-bit platforms, calls the asn1_read_value with a pointer to the wrong data type and the wrong length value, which allows remote attackers to bypass the certificate revocation list (CRL) check and cause a stack-based buffer overflow via a crafted X.509 certificate, related to extraction of a serial number. Per: http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/4230 "Please note that the problem was solved for GnuTLS 1.2.1, released on 2005-04-04. Also, 32-bit platforms are not affected. I have added information about this on http://www.gnu.org/software/gnutls/security.html so that it contains the complete list of known security flaws. I'm using the keyword GNUTLS-SA-2010-1 for this."
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2010-0167.NASL description Updated gnutls packages that fix two security issues are now available for Red Hat Enterprise Linux 4. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client last seen 2020-06-01 modified 2020-06-02 plugin id 45366 published 2010-03-29 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/45366 title CentOS 4 : gnutls (CESA-2010:0167) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2010-0167.NASL description From Red Hat Security Advisory 2010:0167 : Updated gnutls packages that fix two security issues are now available for Red Hat Enterprise Linux 4. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client last seen 2020-06-01 modified 2020-06-02 plugin id 68021 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68021 title Oracle Linux 4 : gnutls (ELSA-2010-0167) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2010-0167.NASL description Updated gnutls packages that fix two security issues are now available for Red Hat Enterprise Linux 4. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The GnuTLS library provides support for cryptographic algorithms and for protocols such as Transport Layer Security (TLS). A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client last seen 2020-06-01 modified 2020-06-02 plugin id 46278 published 2010-05-11 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/46278 title RHEL 4 : gnutls (RHSA-2010:0167) NASL family Scientific Linux Local Security Checks NASL id SL_20100325_GNUTLS_ON_SL4_X.NASL description CVE-2009-3555 TLS: MITM attacks via session renegotiation CVE-2010-0731 gnutls: gnutls_x509_crt_get_serial incorrect serial decoding from ASN1 (BE64) [GNUTLS-SA-2010-1] A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handled session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client last seen 2020-06-01 modified 2020-06-02 plugin id 60752 published 2012-08-01 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/60752 title Scientific Linux Security Update : gnutls on SL4.x, SL5.x i386/x86_64
Oval
| accepted | 2013-04-29T04:21:55.098-04:00 | ||||||||||||
| class | vulnerability | ||||||||||||
| contributors |
| ||||||||||||
| definition_extensions |
| ||||||||||||
| description | The gnutls_x509_crt_get_serial function in the GnuTLS library before 1.2.1, when running on big-endian, 64-bit platforms, calls the asn1_read_value with a pointer to the wrong data type and the wrong length value, which allows remote attackers to bypass the certificate revocation list (CRL) check and cause a stack-based buffer overflow via a crafted X.509 certificate, related to extraction of a serial number. | ||||||||||||
| family | unix | ||||||||||||
| id | oval:org.mitre.oval:def:9759 | ||||||||||||
| status | accepted | ||||||||||||
| submitted | 2010-07-09T03:56:16-04:00 | ||||||||||||
| title | The gnutls_x509_crt_get_serial function in the GnuTLS library before 1.2.1, when running on big-endian, 64-bit platforms, calls the asn1_read_value with a pointer to the wrong data type and the wrong length value, which allows remote attackers to bypass the certificate revocation list (CRL) check and cause a stack-based buffer overflow via a crafted X.509 certificate, related to extraction of a serial number. | ||||||||||||
| version | 26 |
Redhat
| advisories |
| ||||||||||||||||||||||||||||||||||||||||||||||||||||
| rpms |
|
References
- http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
- http://secunia.com/advisories/39127
- http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/4230
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:089
- http://www.redhat.com/support/errata/RHSA-2010-0167.html
- http://www.securityfocus.com/bid/38959
- http://www.vupen.com/english/advisories/2010/0713
- http://www.vupen.com/english/advisories/2010/1054
- https://bugzilla.redhat.com/show_bug.cgi?id=573028
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9759