CVE-2009-1391

Public Exploit

Description

Off-by-one error in the inflate function in Zlib.xs in Compress::Raw::Zlib Perl module before 2.017, as used in AMaViS, SpamAssassin, and possibly other products, allows context-dependent attackers to cause a denial of service (hang or crash) via a crafted zlib compressed stream that triggers a heap-based buffer overflow, as exploited in the wild by Trojan.Downloader-71014 in June 2009.

Category

6.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 19.40% Top 5%
Vendor Advisory ubuntu.com Vendor Advisory mandriva.com Vendor Advisory gentoo.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory secunia.com Vendor Advisory vupen.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://article.gmane.org/gmane.mail.virus.amavis.user/33635
http://thread.gmane.org/gmane.mail.virus.amavis.user/33635
https://exchange.xforce.ibmcloud.com/vulnerabilities/51062 vdb entry
https://usn.ubuntu.com/794-1/ vendor advisory
http://www.mandriva.com/security/advisories?name=MDVSA-2009:157 vendor advisory
https://bugs.gentoo.org/show_bug.cgi?id=273141
http://www.securityfocus.com/bid/35307 exploit vdb entry patch
http://security.gentoo.org/glsa/glsa-200908-07.xml vendor advisory
http://secunia.com/advisories/35685 third party advisory
https://bugzilla.redhat.com/show_bug.cgi?id=504386 exploit
http://secunia.com/advisories/35689 third party advisory
http://www.vupen.com/english/advisories/2009/1571 vdb entry patch vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00002.html vendor advisory
http://osvdb.org/55041 vdb entry
http://article.gmane.org/gmane.mail.virus.amavis.user/33638 exploit
http://secunia.com/advisories/35422 third party advisory vendor advisory
http://secunia.com/advisories/35876 third party advisory
https://www.redhat.com/archives/fedora-package-announce/2009-July/msg00607.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2009-1391?
CVE-2009-1391 has been scored as a medium severity vulnerability.
How to fix CVE-2009-1391?
To fix CVE-2009-1391, 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-2009-1391 being actively exploited in the wild?
It is possible that CVE-2009-1391 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~19% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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