It was discovered that libICE before 1.0.9-8 used a weak entropy to generate keys.
Priority LOW 25CWE-331Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 8 fixed, 2 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat.
Summary
It was discovered that libICE before 1.0.9-8 used a weak entropy to generate keys. A local attacker could potentially use this flaw for session hijacking using the information available from the process list.
Why it matters now
EPSS 0.00464 40th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Xorg | libICE | 1.0.9-8 | — | No fix listed | CNA |
- libICE VendorXorg Affected 1.0.9-8 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:freedesktop:libice:*:*:*:*:*:*:*:* | up to 1.0.9 | Vulnerable | Freedesktop |
| cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* | 7.4 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* | 7.5 | Vulnerable | Red Hat |
| cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* | 7.0 | Vulnerable | Red Hat |
- cpe:2.3:a:freedesktop:libice:*:*:*:*:*:*:*:* Versions up to 1.0.9 Vulnerable ·Freedesktop
- cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_aus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.4:*:*:*:*:*:*:* Versions 7.4 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5:*:*:*:*:*:*:* Versions 7.5 Vulnerable ·Red Hat
- cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2017:1865 Released 2017-08-01 · Red Hat rating ModerateX.org X11 libraries security, bug fix and enhancement update
- Red Hat Enterprise Linux Client (v. 7) libICE-1.0.9-9.el7, libX11-1.6.5-1.el7, libX11-common-1.6.5-1.el7 +38
- Red Hat Enterprise Linux Client Optional (v. 7) drm-utils-2.4.74-1.el7, libICE-devel-1.0.9-9.el7, libX11-devel-1.6.5-1.el7 +44
- Red Hat Enterprise Linux ComputeNode (v. 7) libICE-1.0.9-9.el7, libX11-1.6.5-1.el7, libX11-common-1.6.5-1.el7 +29
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) drm-utils-2.4.74-1.el7, libICE-devel-1.0.9-9.el7, libX11-devel-1.6.5-1.el7 +46
- Red Hat Enterprise Linux Server (v. 7) libICE-1.0.9-9.el7, libICE-1.0.9-9.el7.ppc, libICE-devel-1.0.9-9.el7 +47
- Red Hat Enterprise Linux Server Optional (v. 7) drm-utils-2.4.74-1.el7, libXdmcp-devel-1.1.2-6.el7, libXdmcp-devel-1.1.2-6.el7.ppc +42
- Red Hat Enterprise Linux Workstation (v. 7) libICE-1.0.9-9.el7, libICE-devel-1.0.9-9.el7, libX11-1.6.5-1.el7 +47
- Red Hat Enterprise Linux Workstation Optional (v. 7) drm-utils-2.4.74-1.el7, libXdmcp-devel-1.1.2-6.el7, libXfont-devel-1.5.2-1.el7 +24
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2017:1865 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2017:1865 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2017:1865 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2017:1865 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2017:1865 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2017:1865 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2017:1865 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2017:1865 |
Timeline
- 2026-10-02 Threatist record created from CVE-2017-2626
- 2026-10-03 Alias added: GHSA-jqp9-hwjj-p328
References
Patch 2
More Xorg vulnerabilities
- TI-2008-02265 Integer overflow in the ProcRenderCreateCursor function in the Render extension in the X… CVSS 2.0MEDIUM 6.8
- TI-2017-01875 Information disclosure in xorg-x11-server CVSS 3.0HIGH 7.0
- TI-2017-01876 It was discovered that libXdmcp before 1.1.2 including used weak entropy to generate… CVSS 3.0MEDIUM 6.5
Sources
- CVE-2017-2626 · CVE Program
- CVE-2017-2626 · NVD
- FIRST EPSS
- GHSA-jqp9-hwjj-p328 · GitHub Advisory Database · CC BY 4.0
- CVE-2017-2626 · Red Hat security data · CC BY 4.0
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