CVE-2009-4355

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.

Category

5.0
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 22.93% Top 5%
Vendor Advisory debian.org Vendor Advisory fedoraproject.org Vendor Advisory slackware.com Vendor Advisory marc.info Vendor Advisory mandriva.com Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory fedoraproject.org Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.debian.org/security/2010/dsa-1970 vendor advisory
http://www.vupen.com/english/advisories/2010/0916 vdb entry
http://cvs.openssl.org/chngview?cn=19167
http://secunia.com/advisories/42724 third party advisory
http://secunia.com/advisories/39461 third party advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11260 signature vdb entry
https://bugzilla.redhat.com/show_bug.cgi?id=546707
http://lists.fedoraproject.org/pipermail/package-announce/2010-April/039561.html vendor advisory
http://slackware.com/security/viewer.php?l=slackware-security&y=2010&m=slackware-security.663049 vendor advisory
http://secunia.com/advisories/38761 third party advisory
http://wiki.rpath.com/wiki/Advisories:rPSA-2010-0004
http://secunia.com/advisories/38181 third party advisory vendor advisory
http://secunia.com/advisories/38200 third party advisory vendor advisory
https://issues.rpath.com/browse/RPL-3157
http://www.vupen.com/english/advisories/2010/0839 vdb entry
http://cvs.openssl.org/chngview?cn=19069
http://marc.info/?l=bugtraq&m=127128920008563&w=2 vendor advisory
http://cvs.openssl.org/chngview?cn=19068
http://www.mandriva.com/security/advisories?name=MDVSA-2010:022 vendor advisory
https://rhn.redhat.com/errata/RHSA-2010-0095.html vendor advisory
http://www.ubuntu.com/usn/USN-884-1 vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2010-01/msg00009.html vendor advisory
http://www.openwall.com/lists/oss-security/2010/01/13/3 mailing list
https://kb.bluecoat.com/index?page=content&id=SA50
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6678 signature vdb entry
http://secunia.com/advisories/42733 third party advisory
http://www.vupen.com/english/advisories/2010/0124 vdb entry vendor advisory
http://lists.fedoraproject.org/pipermail/package-announce/2010-April/038587.html vendor advisory
http://secunia.com/advisories/38175 third party advisory vendor advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12168 signature vdb entry

Frequently Asked Questions

What is the severity of CVE-2009-4355?
CVE-2009-4355 has been scored as a medium severity vulnerability.
How to fix CVE-2009-4355?
To fix CVE-2009-4355, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2009-4355 being actively exploited in the wild?
It is possible that CVE-2009-4355 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~23% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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