CVE-2015-6997

MediumCVSS 4.3/10Last modified Jun 17, 2026

Description

The X.509 certificate-trust implementation in Apple iOS before 9.1 does not recognize that the kSecRevocationRequirePositiveResponse flag implies a revocation-checking requirement, which makes it easier for man-in-the-middle attackers to spoof endpoints by leveraging access to a revoked certificate.

Metrics

CVSS 2.0 4.3/10AV:N/AC:M/Au:N/C:N/I:P/A:N

Weakness enumeration

CWE-254

Affected software

VendorProductVersions
n/an/an/a

References

Timeline

Published
Oct 23, 2015
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2015

CVE-2015-69995.0The OCSP client in Apple iOS before 9.1 does not check for certificate expiry, which allows remote attackers to spoof a valid certificate byCVE-2015-70002.1Notification Center in Apple iOS before 9.1 mishandles changes to "Show on Lock Screen" settings, which allows physically proximate attackerCVE-2015-70016.8AppSandbox in Apple iOS before 9.2, OS X before 10.11.2, tvOS before 9.1, and watchOS before 2.1 mishandles hard links, which allows attackeCVE-2015-70026.8WebKit, as used in Apple iOS before 9.1, Safari before 9.0.1, and iTunes before 12.3.1, allows remote attackers to execute arbitrary code orCVE-2015-70036.8coreaudiod in Audio in Apple OS X before 10.11.1 does not initialize an unspecified data structure, which allows attackers to execute arbitrCVE-2015-70047.1The kernel in Apple iOS before 9.1 allows attackers to cause a denial of service via a crafted app.CVE-2015-70056.8WebKit, as used in Apple iOS before 9.1, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption aCVE-2015-70066.8Directory traversal vulnerability in the BOM (aka Bill of Materials) component in Apple iOS before 9.1, OS X before 10.11.1, and watchOS befCVE-2015-70077.5Script Editor in Apple OS X before 10.11.1 allows remote attackers to bypass an intended user-confirmation requirement for AppleScript execuCVE-2015-70086.8FontParser in Apple iOS before 9.1 and OS X before 10.11.1 allows remote attackers to execute arbitrary code or cause a denial of service (mCVE-2015-70096.8FontParser in Apple iOS before 9.1 and OS X before 10.11.1 allows remote attackers to execute arbitrary code or cause a denial of service (mCVE-2015-70106.8FontParser in Apple iOS before 9.1 and OS X before 10.11.1 allows remote attackers to execute arbitrary code or cause a denial of service (m
CVE-2015-6997: Medium severity, CVSS 4.3 | Vulnix