gnutls: "Just in Time" PRIME + PROBE cache-based side channel attack can lead to plaintext recovery
Published Aug 22, 2018
5.6
MEDIUMCVSS 3.1
EPSS 0.39%
Description
A cache-based side channel in GnuTLS implementation that leads to plain text recovery in cross-VM attack setting was found. An attacker could use a combination of "Just in Time" Prime+probe attack in combination with Lucky-13 attack to recover plain text using crafted packets.
Affected products
- Vendor n/a Product Gnutls Defaultn/a
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||
|---|---|---|---|---|---|---|
| n/a | Gnutls | n/a |
|
Configuration 2
- 7.0
- 7.0
- 7.0
Configuration 3
- 16.04
- 18.04
- 18.10
- 19.04
Configuration 4
- 31
- 32
Configuration 5
- 8.0
No data.
Red Hat Enterprise Linux 7
gnutls-0:3.3.29-8.el7
Fixed · RHSA-2018:3050
Red Hat Enterprise Linux 5
gnutls
Will not fix
Red Hat Enterprise Linux 6
gnutls
Will not fix
Red Hat Enterprise Linux 8
gnutls
Not affected
Red Hat Enterprise Linux 8
mingw-gnutls
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 7 | gnutls-0:3.3.29-8.el7 | Fixed | RHSA-2018:3050 |
| Red Hat Enterprise Linux 5 | gnutls | Will not fix | n/a |
| Red Hat Enterprise Linux 6 | gnutls | Will not fix | n/a |
| Red Hat Enterprise Linux 8 | gnutls | Not affected | n/a |
| Red Hat Enterprise Linux 8 | mingw-gnutls | Will not fix | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:N
AV:L/AC:M/Au:N/C:P/I:N/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 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 0.39% (0.00388) | 30.56th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.39% (0.00388) | 30.42th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.02% (0.00023) | 3.52th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00051) | 21.90th | v3 (v2023.03.01) |
| May 22, 2024 | 0.05% (0.00051) | 19.60th | v3 (v2023.03.01) |
| Aug 16, 2023 | 0.05% (0.00051) | 17.59th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.05% (0.00047) | 14.28th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.28% (0.01282) | 68.34th | v2 (v2022.01.01) |
| Feb 22, 2023 | 1.28% (0.01282) | 68.05th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.28% (0.01282) | 65.91th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.28% (0.01282) | 41.72th | v2 (v2022.01.01) |
| Feb 3, 2022 | 2.27% (0.02273) | 50.89th | v1 |
| Jan 6, 2022 | 2.27% (0.02273) | 50.38th | v1 |
| Sep 1, 2021 | 2.27% (0.02273) | 77.89th | v1 |
| Apr 14, 2021 | 2.27% (0.02273) | 0.00th | v1 |
References (14)
- http://www.securityfocus.com/bid/105138 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2018:3050 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3505 vendor-advisoryx_refsource_REDHATBroken Link
- https://access.redhat.com/security/cve/CVE-2018-10846 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1582574 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-10846 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://eprint.iacr.org/2018/747 x_refsource_MISCThird Party Advisory
- https://gitlab.com/gnutls/gnutls/merge_requests/657 x_refsource_CONFIRMIssue TrackingPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/10/msg00022.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ILMOWPKMTZAIMK5F32TUMO34XCABUCFJ/ vendor-advisoryx_refsource_FEDORA
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDYY3R4F5CUTFAMXH2C5NKYFVDEJLTT7/ vendor-advisoryx_refsource_FEDORA
- https://nvd.nist.gov/vuln/detail/CVE-2018-10846
- https://usn.ubuntu.com/3999-1/ vendor-advisoryx_refsource_UBUNTUThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-10846
Change history (0)
No recorded changes yet.