gnutls: RSA PKCS#1 signature verification forgery
Published Mar 24, 2015
5.0
MEDIUMCVSS 2.0
EPSS 1.40%
Description
GnuTLS before 3.1.0 does not verify that the RSA PKCS #1 signature algorithm matches the signature algorithm in the certificate, which allows remote attackers to conduct downgrade attacks via unspecified vectors.
Affected products
No data.
No data.
Red Hat Enterprise Linux 6
gnutls-0:2.8.5-18.el6
Fixed · RHSA-2015:1457
Red Hat Enterprise Linux 5
gnutls
Will not fix
Red Hat Enterprise Linux 7
gnutls
Not affected
Red Hat Enterprise Virtualization 3
mingw-virt-viewer
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 6 | gnutls-0:2.8.5-18.el6 | Fixed | RHSA-2015:1457 |
| Red Hat Enterprise Linux 5 | gnutls | Will not fix | n/a |
| Red Hat Enterprise Linux 7 | gnutls | Not affected | n/a |
| Red Hat Enterprise Virtualization 3 | mingw-virt-viewer | Affected | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
This issue did not affect the version of gnutls package as shipped with Red Hat Enterprise Linux 7. This issue affects the version of gnutls package as shipped with Red Hat Enterprise Linux 5. Red Hat Enterprise Linux 5 is now in Extended Life Cycle phase of the support and maintenance life cycle. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Red Hat Enterprise Linux Life Cycle: https://access.redhat.com/support/policy/updates/errata/.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
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 (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.40% (0.01397) | 71.44th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.41% (0.01407) | 69.01th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.27% (0.00271) | 48.45th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.46% (0.00461) | 76.20th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.46% (0.00461) | 74.65th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.46% (0.00461) | 71.49th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (9)
- http://rhn.redhat.com/errata/RHSA-2015-1457.html vendor-advisoryx_refsource_REDHAT
- http://www.debian.org/security/2015/dsa-3191 vendor-advisoryx_refsource_DEBIAN
- http://www.gnutls.org/security.html x_refsource_CONFIRMVendor Advisory
- http://www.securityfocus.com/bid/73119 vdb-entryx_refsource_BID
- http://www.securitytracker.com/id/1032148 vdb-entryx_refsource_SECTRACK
- https://access.redhat.com/security/cve/CVE-2015-0282 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1194371 Issue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2015-0282
- https://www.cve.org/CVERecord?id=CVE-2015-0282
| Link | Providers | Tags |
|---|---|---|
| http://rhn.redhat.com/errata/RHSA-2015-1457.html | vendor-advisoryx_refsource_REDHAT | |
| http://www.debian.org/security/2015/dsa-3191 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.gnutls.org/security.html | x_refsource_CONFIRMVendor Advisory | |
| http://www.securityfocus.com/bid/73119 | vdb-entryx_refsource_BID | |
| http://www.securitytracker.com/id/1032148 | vdb-entryx_refsource_SECTRACK | |
| https://access.redhat.com/security/cve/CVE-2015-0282 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1194371 | Issue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2015-0282 | ||
| https://www.cve.org/CVERecord?id=CVE-2015-0282 |
Change history (0)
No recorded changes yet.