Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c in libssl in OpenSSL 0.9.8f through 0.9.8h allows remote attackers to cause a denial of service (memory consumption) via multiple calls, as demonstrated by initial SSL client handshakes to the Apache HTTP Server mod_ssl that specify a compression algorithm.
| Date Added | Due Date | Vulnerability Name | Required Action |
|---|---|---|---|
| N/A |
| Type | Version | Base score | Base severity | Vector |
|---|---|---|---|---|
| Primary | 2.0 | 5.0 | MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
| CWE ID | Type | Source |
|---|---|---|
| CWE-399 | Primary | nvd@nist.gov |
Not vulnerable. This issue did not affect the versions of mod_ssl or httpd as shipped with Red Hat Enterprise Linux 2.1, 3, 4, and 5 prior to 5.3. In Red Hat Enterprise Linux 5.3, OpenSSL packages were rebased to upstream version 0.9.8e via RHBA-2009:0181 (https://rhn.redhat.com/errata/RHBA-2009-0181.html), introducing this problem in Red Hat Enterprise Linux 5. Updated httpd packages were released via: https://rhn.redhat.com/errata/RHSA-2009-1075.html