gnutls: Incorrect certificate validation when using OCSP responses (GNUTLS-SA-2016-3)
Published Sep 27, 2016
7.5
HIGHCVSS 3.0
EPSS 2.44%
Description
The gnutls_ocsp_resp_check_crt function in lib/x509/ocsp.c in GnuTLS before 3.4.15 and 3.5.x before 3.5.4 does not verify the serial length of an OCSP response, which might allow remote attackers to bypass an intended certificate validation mechanism via vectors involving trailing bytes left by gnutls_malloc.
Affected products
No data.
No data.
Red Hat Enterprise Linux 7
gnutls-0:3.3.26-9.el7
Fixed · RHSA-2017:2292
Red Hat Enterprise Linux 5
gnutls
Not affected
Red Hat Enterprise Linux 6
gnutls
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | gnutls-0:3.3.26-9.el7 | Fixed | RHSA-2017:2292 |
| Red Hat Enterprise Linux 5 | gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 6 | gnutls | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (12 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.44% (0.02437) | 83.70th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.44% (0.02437) | 82.10th | v5 (v2026.06.15) |
| Mar 30, 2025 | 0.75% (0.00754) | 70.91th | v4 (v2025.03.14) |
| Mar 29, 2025 | 7.00% (0.06999) | 85.43th | v4 (v2025.03.14) |
| Mar 17, 2025 | 0.75% (0.00754) | 71.50th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.61% (0.00615) | 79.44th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.61% (0.00615) | 78.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.61% (0.00615) | 75.43th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 23, 2023 | 1.32% (0.01319) | 71.23th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.32% (0.01319) | 69.22th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
References (10)
- http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html vendor-advisoryx_refsource_SUSE
- http://www.securityfocus.com/bid/92893 vdb-entryx_refsource_BID
- https://access.redhat.com/errata/RHSA-2017:2292 vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2016-7444 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1374266 Issue Tracking
- https://gitlab.com/gnutls/gnutls/commit/964632f37dfdfb914ebc5e49db4fa29af35b1de9 x_refsource_CONFIRMPatch
- https://lists.gnupg.org/pipermail/gnutls-devel/2016-September/008146.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2016-7444
- https://www.cve.org/CVERecord?id=CVE-2016-7444
- https://www.gnutls.org/security.html x_refsource_CONFIRMVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2017-02/msg00005.html | vendor-advisoryx_refsource_SUSE | |
| http://www.securityfocus.com/bid/92893 | vdb-entryx_refsource_BID | |
| https://access.redhat.com/errata/RHSA-2017:2292 | vendor-advisoryx_refsource_REDHAT | |
| https://access.redhat.com/security/cve/CVE-2016-7444 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1374266 | Issue Tracking | |
| https://gitlab.com/gnutls/gnutls/commit/964632f37dfdfb914ebc5e49db4fa29af35b1de9 | x_refsource_CONFIRMPatch | |
| https://lists.gnupg.org/pipermail/gnutls-devel/2016-September/008146.html | mailing-listx_refsource_MLISTMailing ListThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2016-7444 | ||
| https://www.cve.org/CVERecord?id=CVE-2016-7444 | ||
| https://www.gnutls.org/security.html | x_refsource_CONFIRMVendor Advisory |
Change history (0)
No recorded changes yet.