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MEDIUM · 5.0

CVE-2009-4355

Memory leak in the zlib_stateful_finish function in crypto/comp/c_zlib.c in OpenSSL 0.9.8l and earlier and 1.0.0 Beta through Beta 4 allows remote attackers to cause a denial of service (memory consum...

Vulnerability Description

Memory leak in the zlib_stateful_finish function in crypto/comp/c_zlib.c in OpenSSL 0.9.8l and earlier and 1.0.0 Beta through Beta 4 allows remote attackers to cause a denial of service (memory consumption) via vectors that trigger incorrect calls to the CRYPTO_cleanup_all_ex_data function, as demonstrated by use of SSLv3 and PHP with the Apache HTTP Server, a related issue to CVE-2008-1678.

CVSS Score

5.0

MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P
Confidentiality
NONE
Integrity
NONE
Availability
PARTIAL

Affected Products

VendorProductVersions
OpensslOpenssl<= 0.9.8l
RedhatOpenssl0.9.6-15

Related Weaknesses (CWE)

CWE-399

References

FAQ

What is CVE-2009-4355?

CVE-2009-4355 is a vulnerability with a CVSS score of 5.0 (MEDIUM). Memory leak in the zlib_stateful_finish function in crypto/comp/c_zlib.c in OpenSSL 0.9.8l and earlier and 1.0.0 Beta through Beta 4 allows remote attackers to cause a denial of service (memory consum...

How severe is CVE-2009-4355?

CVE-2009-4355 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2009-4355?

Check the references section above for vendor advisories and patch information. Affected products include: Openssl Openssl, Redhat Openssl.