VulnerabilityModified
CVE-2008-5077
OpenSSL 0.9.8i and earlier does not properly check the return value from the EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys.
MEDIUM 5.8EPSS 5.15%
Does this matter?
Lower severity and a low EPSS score (5.15%). Track it; it rarely justifies an emergency change on its own.
Description
OpenSSL 0.9.8i and earlier does not properly check the return value from the EVP_VerifyFinal function, which allows remote attackers to bypass validation of the certificate chain via a malformed SSL/TLS signature for DSA and ECDSA keys.
- CVSS 2.0
- 5.8 MEDIUMAV:N/AC:M/Au:N/C:N/I:P/A:P
- EPSS
- 5.15% probability · 92th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- openssl/openssl
- Source
- secalert@redhat.com
References
- http://lists.apple.com/archives/security-announce/2009/May/msg00002.html
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2011-07/msg00014.html
- http://marc.info/?l=bugtraq&m=123859864430555&w=2
- http://marc.info/?l=bugtraq&m=124277349419254&w=2
- http://marc.info/?l=bugtraq&m=127678688104458&w=2
- http://secunia.com/advisories/33338Vendor Advisory
- http://secunia.com/advisories/33394
- http://secunia.com/advisories/33436Vendor Advisory
- http://secunia.com/advisories/33557Vendor Advisory
- http://secunia.com/advisories/33673Vendor Advisory
- http://secunia.com/advisories/33765Vendor Advisory
- http://secunia.com/advisories/34211Vendor Advisory
- http://secunia.com/advisories/35074Vendor Advisory
- http://secunia.com/advisories/35108Vendor Advisory
- http://secunia.com/advisories/39005Vendor Advisory
- http://security.gentoo.org/glsa/glsa-200902-02.xml
- http://slackware.com/security/viewer.php?l=slackware-security&y=2009&m=slackware-security.544796
- http://sunsolve.sun.com/search/document.do?assetkey=1-66-250826-1
- http://support.apple.com/kb/HT3549
- http://support.avaya.com/elmodocs2/security/ASA-2009-038.htm
- http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&id=837653
- http://voodoo-circle.sourceforge.net/sa/sa-20090123-01.html
- http://www.ocert.org/advisories/ocert-2008-016.html
- http://www.openssl.org/news/secadv_20090107.txt
- http://www.redhat.com/support/errata/RHSA-2009-0004.html
- http://www.securityfocus.com/archive/1/499827/100/0/threaded
- http://www.securityfocus.com/archive/1/502322/100/0/threaded
- http://www.securityfocus.com/bid/33150
- http://www.securitytracker.com/id?1021523
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.