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    CVE-2013-2116

    The _gnutls_ciphertext2compressed function in lib/gnutls_cipher.c in GnuTLS 2.12.23 allows remote attackers to cause a denial of service (buffer over-read and crash) via a crafted padding length. NOTE: this might be due to an incorrect fix for CVE-2013-0169.

    Published:May 29, 2013
    Last Modified:Apr 11, 2025
    EPS:Jul 3, 2013
    EPSS Score:0.08988
    CVSS Score:5

    Affected Products

    Vendor
    Gnu
    Product
    Gnutls
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-540 Overread Buffers
    CAPEC-588 DOM-Based XSS
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

    CVE-2026-42014 (CVSS 6.6) — A flaw was found in GnuTLS. The `gnutls_pkcs11_token_set_pin` function, used for changing the Security Officer…
    CVE-2026-5419 (CVSS 3.7) — A flaw was found in gnutls. The PKCS#7 padding check, performed during decryption, was not constant-time. This…
    CVE-2026-42013 (CVSS 8.2) — A flaw was found in gnutls. When validating certificates, an oversized Subject Alternative Name (SAN) could ca…
    CVE-2026-42012 (CVSS 7.1) — A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially craft…
    CVE-2026-5260 (CVSS 8.2) — A flaw was found in libgnutls. A remote attacker, by sending an extremely short premaster secret during an RSA…
    CVE-2026-33846 (CVSS 7.5) — A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS. The iss…
    CVE-2026-3832 (CVSS 3.7) — A flaw was found in gnutls. A remote attacker could exploit this vulnerability by presenting a specially craft…
    CVE-2026-33845 (CVSS 7.5) — A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leadi…
    CVE-2026-3833 (CVSS 6.5) — A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `n…
    CVE-2026-42009 (CVSS 7.5) — A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security …

    References

    http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00019.html
    http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.html
    http://rhn.redhat.com/errata/RHSA-2013-0883.html
    http://secunia.com/advisories/53911
    http://secunia.com/advisories/57260
    http://secunia.com/advisories/57274
    http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6753
    http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6754
    http://www.debian.org/security/2013/dsa-2697
    http://www.gnutls.org/security.html#GNUTLS-SA-2013-2
    http://www.mandriva.com/security/advisories?name=MDVSA-2013:171
    http://www.securitytracker.com/id/1028603
    http://www.ubuntu.com/usn/USN-1843-1
    https://gitorious.org/gnutls/gnutls/commit/5164d5a1d57cd0372a5dd074382ca960ca18b27d
    http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00019.html
    http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00001.html
    http://lists.opensuse.org/opensuse-security-announce/2014-03/msg00003.html
    http://rhn.redhat.com/errata/RHSA-2013-0883.html
    http://secunia.com/advisories/53911
    http://secunia.com/advisories/57260
    http://secunia.com/advisories/57274
    http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6753
    http://thread.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/6754
    http://www.debian.org/security/2013/dsa-2697
    http://www.gnutls.org/security.html#GNUTLS-SA-2013-2
    http://www.mandriva.com/security/advisories?name=MDVSA-2013:171
    http://www.securitytracker.com/id/1028603
    http://www.ubuntu.com/usn/USN-1843-1
    https://gitorious.org/gnutls/gnutls/commit/5164d5a1d57cd0372a5dd074382ca960ca18b27d

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High