Vulnerability in OpenSSL
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 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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.0 (Medium). Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.092 (95.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 95.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.092 · newest: 0.092 · change: 0.000
Affected products
- OpenSSL — versions 0.9.1c, 0.9.2b, 0.9.3
- Red Hat OpenSSL — versions 0.9.6-15, 0.9.6b-3, 0.9.7a-2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.debian.org/security/2010/dsa-1970 (vendor-advisory)
- www.vupen.com/english/advisories/2010/0916 (vdb-entry)
- cvs.openssl.org/chngview
- secunia.com/advisories/42724 (third-party-advisory)
- secunia.com/advisories/39461 (third-party-advisory)
- oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:11260 (signature, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi
- lists.fedoraproject.org/pipermail/package-announce/2010-April/039561.html (vendor-advisory)
- slackware.com/security/viewer.php (vendor-advisory)
- secunia.com/advisories/38761 (third-party-advisory)
Frequently asked questions
- What is CVE-2009-4355?
- CVE-2009-4355 is a vulnerability in OpenSSL, classified under CWE-399. Published 2010-01-14.
- Is CVE-2009-4355 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.