Memory leak in the zlib_stateful_init function in crypto/comp/c_zlib.c in libssl in…
Priority LOW 31CWE-399Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Partial
- Fix status
- Fixed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-399 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.05479 92nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2009:1075 Released 2009-05-27 · Red Hat rating Moderatehttpd security update
- Red Hat Enterprise Linux (v. 5 server) httpd-2.2.3-22.el5_3.1, httpd-2.2.3-22.el5_3.1.i386, httpd-2.2.3-22.el5_3.1.ia64 +13
- Red Hat Enterprise Linux Desktop (v. 5 client) httpd-2.2.3-22.el5_3.1, httpd-2.2.3-22.el5_3.1.i386, mod_ssl-1:2.2.3-22.el5_3.1 +1
- Red Hat Enterprise Linux Desktop Workstation (v. 5 client) httpd-2.2.3-22.el5_3.1, httpd-devel-2.2.3-22.el5_3.1, httpd-devel-2.2.3-22.el5_3.1.i386 +2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux (v. 5 server) | Fixed | RHSA-2009:1075 |
| Red Hat Enterprise Linux Desktop (v. 5 client) | Fixed | RHSA-2009:1075 |
| Red Hat Enterprise Linux Desktop Workstation (v. 5 client) | Fixed | RHSA-2009:1075 |
Timeline
- 2026-10-02 Threatist record created from CVE-2008-1678
- 2026-10-03 Alias added: GHSA-xwx3-pfr8-5rp4
References
Exploit 2
Advisory 9
Other 9
- https://bugzilla.redhat.com/show_bug.cgi?id=447268
- oval:org.mitre.oval:def:9754
- https://issues.apache.org/bugzilla/show_bug.cgi?id=44975
- http://bugs.gentoo.org/show_bug.cgi?id=222643
- http://svn.apache.org/viewvc?view=rev&revision=654119
- ADV-2008-2780
- https://bugs.edge.launchpad.net/bugs/186339
- https://kb.bluecoat.com/index?page=content&id=SA50
- http://support.apple.com/kb/HT3216
More Openssl vulnerabilities
- TI-2022-01915 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
- TI-2021-02645 SM2 Decryption Buffer Overflow CVSS 3.1CRITICAL 9.8
- TI-2009-03392 The TLS protocol, and the SSL protocol 3.0 and possibly earlier, as used in Microsoft… CVSS 3.1CRITICAL 9.8
- TI-2022-01176 The c_rehash script allows command injection CVSS 3.1CRITICAL 9.8
- TI-2014-00154 The (1) TLS and (2) DTLS implementations in OpenSSL 1.0.1 before 1.0.1g do not properly… KEVCVSS 3.1HIGH 7.5
- TI-2025-14107 Stack buffer overflow in CMS (Auth)EnvelopedData parsing CVSS 3.1HIGH 8.8
Sources
- CVE-2008-1678 · CVE Program
- CVE-2008-1678 · NVD
- FIRST EPSS
- GHSA-xwx3-pfr8-5rp4 · GitHub Advisory Database · CC BY 4.0
- CVE-2008-1678 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences