CVE-2009-1391
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…
- 6.8MediumCVSS base score
- 7.4%Exploitation in 30 daysEPSS · top 5.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- 1Public exploitsMetasploit, Nuclei and Exploit-DB
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.
Public exploit
An exploit or proof of concept is public: anyone can try it against an unpatched system. The public collections list an Exploit-DB entry for it.
Show the exploits1
Exploit-DB1 entry
- Compress::Raw::Zlib Perl Module - Remote Code Execution (Exploit-DB entry) (opens in a new tab)
EDB-ID 33032remote, linuxpublished 11 May 2009Verified
Modules, templates and exploits as listed by the Metasploit Framework (BSD-3-Clause), ProjectDiscovery's Nuclei templates (MIT) and the Exploit Database (GPLv2), read once a day. Where the data comes from
Timeline
ID reserved
By redhat
- 54 days later
· 54 days later
Published
- 15 years later
· 15 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | Medium6.8 | AV:N/AC:M/Au:N/C:P/I:P/A:P |
- EPSS (exploitation in 30 days)
- 7.4% · top 5.5% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 6.8.
Affected products
n/a
- affected n/a
References
References18
- http://article.gmane.org/gmane.mail.virus.amavis.user/33635 (opens in a new tab)x_refsource_MISCx_transferred
- http://thread.gmane.org/gmane.mail.virus.amavis.user/33635 (opens in a new tab)x_refsource_MISCx_transferred
- perl-compressrawzlib-inflate-bo(51062) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- USN-794-1 (opens in a new tab)vendor-advisoryx_refsource_UBUNTUx_transferred
- MDVSA-2009:157 (opens in a new tab)vendor-advisoryx_refsource_MANDRIVAx_transferred
- https://bugs.gentoo.org/show_bug.cgi?id=273141 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 35307 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- GLSA-200908-07 (opens in a new tab)vendor-advisoryx_refsource_GENTOOx_transferred
- 35685 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- https://bugzilla.redhat.com/show_bug.cgi?id=504386 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 35689 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- ADV-2009-1571 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- SUSE-SR:2009:012 (opens in a new tab)vendor-advisoryx_refsource_SUSEx_transferred
- 55041 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
- http://article.gmane.org/gmane.mail.virus.amavis.user/33638 (opens in a new tab)x_refsource_MISCx_transferred
- 35422 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- 35876 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- FEDORA-2009-7680 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2009-1389 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2009-1391)Record last updated .