Home / vulnerabilities Secunia Security Advisory 48488
Posted on 22 March 2012
Source : packetstormsecurity.org Link
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TITLE:
GnuTLS TLS Record Handling and ASN1 Length DER Decoding
Vulnerabilities
SECUNIA ADVISORY ID:
SA48488
VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/48488/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=48488
RELEASE DATE:
2012-03-21
DISCUSS ADVISORY:
http://secunia.com/advisories/48488/#comments
AVAILABLE ON SITE AND IN CUSTOMER AREA:
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* Popularity
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* Criticality Level
* Impact
* Where
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* Operating System / Software
* CVE Reference(s)
http://secunia.com/advisories/48488/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=48488
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DESCRIPTION:
Mu Dynamics has reported two vulnerabilities in GnuTLS, which can be
exploited by malicious people to potentially compromise an
application using the library.
1) An error within the block cipher decryption logic when handling
TLS records can be exploited to corrupt memory via a specially
crafted "GenericBlockCipher" structure.
This vulnerability is reported in versions prior to 2.12.17 and prior
to 3.0.15.
2) Some errors in the libtasn1 library can be exploited to corrupt
memory.
For more information:
SA48397
This vulnerability is reported in versions prior 2.12.18 and prior to
3.0.16.
Successful exploitation of the vulnerabilities may allow execution of
arbitrary code.
SOLUTION:
Update to version 2.12.18 or 3.0.16.
PROVIDED AND/OR DISCOVERED BY:
Matthew Hall, Mu Dynamics
ORIGINAL ADVISORY:
GnuTLS:
http://article.gmane.org/gmane.comp.encryption.gpg.gnutls.devel/5952/
Mu Dynamics (MU-201202-01, MU-201202-02):
http://blog.mudynamics.com/2012/03/20/gnutls-and-libtasn1-vulns/
OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/
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