Vulnerability Description
ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing discrepancy) that may make it easier to launch cryptographic attacks that rely on distinguishing between padding and MAC verification errors, possibly leading to extraction of the original plaintext, aka the "Vaudenay timing attack."
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Openssl | Openssl | < 0.9.6i |
| Freebsd | Freebsd | 4.2 |
| Openbsd | Openbsd | 3.1 |
Related Weaknesses (CWE)
References
- ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-001.txt.ascBroken Link
- ftp://patches.sgi.com/support/free/security/advisories/20030501-01-IBroken Link
- http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000570Broken Link
- http://marc.info/?l=bugtraq&m=104567627211904&w=2Third Party Advisory
- http://marc.info/?l=bugtraq&m=104568426824439&w=2Third Party Advisory
- http://marc.info/?l=bugtraq&m=104577183206905&w=2Third Party Advisory
- http://www.ciac.org/ciac/bulletins/n-051.shtmlBroken Link
- http://www.debian.org/security/2003/dsa-253Broken LinkVendor Advisory
- http://www.iss.net/security_center/static/11369.phpBroken LinkVendor Advisory
- http://www.linuxsecurity.com/advisories/engarde_advisory-2874.htmlBroken Link
- http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:020Broken Link
- http://www.openssl.org/news/secadv_20030219.txtBroken LinkPatchVendor Advisory
- http://www.osvdb.org/3945Broken Link
- http://www.redhat.com/support/errata/RHSA-2003-062.htmlBroken Link
- http://www.redhat.com/support/errata/RHSA-2003-063.htmlBroken Link
FAQ
What is CVE-2003-0078?
CVE-2003-0078 is a vulnerability with a CVSS score of 5.0 (MEDIUM). ssl3_get_record in s3_pkt.c for OpenSSL before 0.9.7a and 0.9.6 before 0.9.6i does not perform a MAC computation if an incorrect block cipher padding is used, which causes an information leak (timing ...
How severe is CVE-2003-0078?
CVE-2003-0078 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2003-0078?
Check the references section above for vendor advisories and patch information. Affected products include: Openssl Openssl, Freebsd Freebsd, Openbsd Openbsd.