MEDIUM
gnutls: First byte of the padding in CBC mode is not checked
Published Dec 20, 2019
5.9
MEDIUMCVSS 3.1
EPSS 1.69%
Description
GnuTLS incorrectly validates the first byte of padding in CBC modes
Affected products
No data.
Configuration 2
OR
- 7.0
- 8.0
- 9.0
- 10.0
No data.
Red Hat Enterprise Linux 5
gnutls
Not affected
Red Hat Enterprise Linux 6
gnutls
Not affected
Red Hat Enterprise Linux 7
gnutls
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 5 | gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 6 | gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 7 | 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.
5.9 MEDIUM NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack Vector Network
Attack Complexity High
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality Impact High
Integrity Impact None
Availability Impact None
No CVSS v3.0 score for this CVE.
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:P/I:N/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
1.69% 0.01685
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
EPSS probability 0.01685
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 (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.69% (0.01685) | 76.17th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.69% (0.01685) | 73.95th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.32% (0.01321) | 78.06th | v4 (v2025.03.14) |
| Mar 29, 2025 | 2.60% (0.02596) | 75.99th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.13% (0.01125) | 76.79th | v4 (v2025.03.14) |
| Dec 13, 2024 | 5.48% (0.05482) | 93.48th | v3 (v2023.03.01) |
| May 17, 2024 | 4.48% (0.04477) | 92.41th | v3 (v2023.03.01) |
| Apr 14, 2024 | 4.69% (0.04691) | 92.51th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.71% (0.01708) | 85.82th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.11% (0.01108) | 55.18th | v2 (v2022.01.01) |
| Sep 17, 2022 | 1.11% (0.01108) | 53.57th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.11% (0.01108) | 51.54th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.11% (0.01108) | 29.61th | v2 (v2022.01.01) |
Weaknesses (1)
References (11)
- http://www.debian.org/security/2015/dsa-3408 x_refsource_MISCThird Party Advisory
- http://www.securityfocus.com/archive/1/537012/100/0/threaded x_refsource_MISCThird Party AdvisoryVDB Entry
- http://www.securityfocus.com/bid/78327 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2015-8313 Vendor Advisory
- https://blog.hboeck.de/archives/877-A-little-POODLE-left-in-GnuTLS-old-versions.html x_refsource_MISCThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1287572 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-8313 x_refsource_MISCIssue TrackingThird Party Advisory
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2015-8313 x_refsource_MISCIssue TrackingPatchThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2015-8313
- https://security-tracker.debian.org/tracker/CVE-2015-8313 x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2015-8313
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2015/dsa-3408 | x_refsource_MISCThird Party Advisory | |
| http://www.securityfocus.com/archive/1/537012/100/0/threaded | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| http://www.securityfocus.com/bid/78327 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2015-8313 | Vendor Advisory | |
| https://blog.hboeck.de/archives/877-A-little-POODLE-left-in-GnuTLS-old-versions.html | x_refsource_MISCThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1287572 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2015-8313 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://bugzilla.suse.com/show_bug.cgi?id=CVE-2015-8313 | x_refsource_MISCIssue TrackingPatchThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-8313 | ||
| https://security-tracker.debian.org/tracker/CVE-2015-8313 | x_refsource_MISCThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2015-8313 |
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Dec 20, 2019
Updated Aug 6, 2024
Reserved Nov 21, 2015
Link CVE-2015-8313
CISA Vulnrichment
Updated n/a