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[R2] LCE 4.8.1 Fixes Multiple Third-party Library Vulnerabilities

High

Synopsis

LCE 4.8.0 is possibly impacted by multiple vulnerabilities reported in third-party libraries. Tenable has not investigated each one to determine if it is exploitable or the vulnerable code path can be reached. Instead, Dev has upgraded the impacted libraries as a faster and safer alternative. Due to the number of library upgrades and the potential for any of these issues to impact LCE users, we strongly encourage you to upgrade. In some cases, older versions than 4.8.0 may be impacted by a subset of these issues.

The following vulnerabilities have been resolved with the updated libraries. Note that several of these issues do not have a CVE assigned.

  • OpenSSL crypto/x509/x509_obj.c X509_NAME_oneline() Function ASN1 Strings Handling Out-of-bounds Read Memory Disclosure
  • OpenSSL ASN.1 Encoder Negative Zero Value Handling Remote Memory Corruption
  • OpenSSL AES-NI CBC MAC Check Padding Oracle MitM Information Disclosure
  • OpenSSL crypto/evp/encode.c EVP_EncodeUpdate() Function Heap Buffer Overflow Weakness
  • OpenSSL crypto/evp/evp_enc.c EVP_EncryptUpdate() Function Heap Buffer Overflow Weakness
  • OpenSSL crypto/asn1/a_d2i_fp.c ASN.1 BIO Length Field Handling Memory Exhaustion Remote DoS
  • Perl-Compatible Regular Expressions (PCRE) pcre_compile.c (*ACCEPT) Verb Handling Buffer Overflow
  • Perl-Compatible Regular Expressions (PCRE) pcretest.c pchars() Function Out-of-bounds Read Weakness
  • Perl-Compatible Regular Expressions (PCRE) pcre_compile.c compile_branch() Function Invalid Pattern Fragment Handling Stack Corruption
  • Perl-Compatible Regular Expressions (PCRE) pcretest.c Out-of-bounds Read Weakness
  • Perl-Compatible Regular Expressions (PCRE) pcre_compile.c pcre_compile2() Function Duplicate Named Group Nested Back Reference Handling Heap Buffer Overflow
  • Libxml2 parser.c xmlParseElementDecl() / xmlParseConditionalSections() Functions Out-of-bounds Read Issue
  • Libxml2 Multiple Functionality Format Strings
  • Libxml2 HTMLparser.c htmlParseNameComplex() Function HTML File Encoding Detection Failure
  • Libxml2 parser.c xmlStringLenDecodeEntities() Function Unspecified XML External Entity (XXE) Injection Issue
  • Libxml2 xmlregexp.c xmlFAParseCharRange() Function Heap Buffer Overflow
  • Libxml2 parser.c xmlParseStartTag2() Function Heap Use-after-free
  • Libxml2 parser.c xmlParseNCNameComplex() Function Heap Use-after-free
  • Libxml2 xmlstring.c xmlStrncatNew() Function Heap Buffer Overflow
  • Libxml2 HTMLparser.c htmlParseSystemLiteral() / htmlParsePubidLiteral() Functions Heap Buffer Overflow
  • Libxml2 xmlsave.c xmlBufAttrSerializeTxtContent() Function Recover Mode XML Content Handling Out-of-bounds Read Issue
  • Libxml2 parser.c Multiple Function Recursive xmlStringDecodeEntities() Call Handling Stack Overflow DoS
  • Libxml2 uri.c xmlParse3986Port() Function Port Argument Handling Integer Overflow Unspecified Issue
  • Libxml2 HTMLparser.c htmlParseName() / htmlParseNameComplex() Functions Out-of-bounds Read Issue
  • Libxml2 parser.c xmlParserEntityCheck() Function Recovery Mode XML Content Parsing Recursion DoS
  • Libxml2 parser.c xmlParseEndTag2() Function Out-of-bounds Read Issue
  • Libxml2 parserInternals.c xmlNextChar() Function Out-of-bounds Read Issue
  • cURL / libcurl lib/multi.c close_all_connections() Function Easy Handle Handling Use-after-free Issue
  • cURL / libcurl lib/vtls/vtls.c TLS Session Resumption Client Certificate Validation Bypass
  • jQuery Core ajax/script.js Third-party Text Handling XSS

Solution

Log Correlation Engine (LCE) 4.8.1 has been released, which updates the linked OpenSSL, PCRE, Libxml2, cURL / libcurl, and jQuery Core libraries. The new version can be obtained on the Tenable Support Portal.

This page contains information regarding security vulnerabilities that may impact Tenable's products. This may include issues specific to our software, or due to the use of third-party libraries within our software. Tenable strongly encourages users to ensure that they upgrade or apply relevant patches in a timely manner.

Tenable takes product security very seriously. If you believe you have found a vulnerability in one of our products, we ask that you please work with us to quickly resolve it in order to protect customers. Tenable believes in responding quickly to such reports, maintaining communication with researchers, and providing a solution in short order.

For more details on submitting vulnerability information, please see our Vulnerability Reporting Guidelines page.

If you have questions or corrections about this advisory, please email advisories@tenable.com