OpenSSL up to 1.0.0 zlib_stateful_finish CRYPTO_cleanup_all_ex_data resource management

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$5k-$25k0.00

A vulnerability was found in OpenSSL up to 1.0.0 (Network Encryption Software). It has been rated as problematic. This issue affects the function CRYPTO_cleanup_all_ex_data in the library zlib_stateful_finish. The manipulation with an unknown input leads to a resource management vulnerability. Using CWE to declare the problem leads to CWE-399. Impacted is availability. The summary by CVE is:

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.

The weakness was released 01/14/2010 (Website). It is possible to read the advisory at rhn.redhat.com. The identification of this vulnerability is CVE-2009-4355. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 08/31/2021).

The vulnerability scanner Nessus provides a plugin with the ID 44131 (SuSE 11 Security Update : OpenSSL (SAT Patch Number 1810)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 185029 (HP-UX Running OpenSSL Multiple Vulnerabilities (HPSBUX02517)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (44131). Entries connected to this vulnerability are available at 4377, 40214, 51836 and 51835.

Productinfo

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License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

Class: Resource management
CWE: CWE-399 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 44131
Nessus Name: SuSE 11 Security Update : OpenSSL (SAT Patch Number 1810)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 67042
OpenVAS Name: Slackware Advisory SSA:2010-060-02 openssl
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/10/2008 🔍
12/18/2009 +525 days 🔍
01/14/2010 +27 days 🔍
01/14/2010 +0 days 🔍
01/18/2010 +4 days 🔍
01/25/2010 +7 days 🔍
03/18/2015 +1878 days 🔍
08/31/2021 +2358 days 🔍

Sourcesinfo

Product: openssl.org

Advisory: rhn.redhat.com
Status: Not defined
Confirmation: 🔍

CVE: CVE-2009-4355 (🔍)
OVAL: 🔍

Vulnerability Center: 24622 - OpenSSL 0.9.8l and Prior \x27zlib\x27 Remote DoS (Memory Consumption) Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/31/2021 09:37
Changes: 03/18/2015 15:15 (60), 02/20/2017 10:05 (6), 08/31/2021 09:34 (4), 08/31/2021 09:37 (1)
Complete: 🔍

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