Buffer overflow in fbglyph.c in XFree86 before 4.2.0, related to glyph clipping for large origins, allows attackers to cause a denial of service and possibly gain privileges via a large number of characters, possibly through the web page search form of KDE Konqueror or from an xterm command with a long title
Published Feb 2, 2002
7.2
HIGHCVSS 2.0
EPSS 0.45%
Description
Buffer overflow in fbglyph.c in XFree86 before 4.2.0, related to glyph clipping for large origins, allows attackers to cause a denial of service and possibly gain privileges via a large number of characters, possibly through the web page search form of KDE Konqueror or from an xterm command with a long title.
Affected products
No data.
- 4.0
- 4.0.1
- 4.0.3
No data.
No Red Hat product state for this CVE.
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.
No CVSS v3.0 score for this CVE.
AV:L/AC:L/Au:N/C:C/I:C/A:C
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
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 2, 2026 | 0.45% (0.00454) | 37.20th | v5 (v2026.06.15) |
| Jun 15, 2026 | 0.45% (0.00454) | 35.85th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.08% (0.00080) | 21.21th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.06% (0.00059) | 26.93th | v3 (v2023.03.01) |
| May 25, 2024 | 0.06% (0.00059) | 24.81th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.06% (0.00059) | 22.80th | 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) |
No CWE recorded.
References (10)
- http://cvsweb.xfree86.org/cvsweb/xc/programs/Xserver/fb/fbglyph.c x_refsource_MISC
- http://marc.info/?l=bugtraq&m=100776624224549&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=bugtraq&m=100784290015880&w=2 mailing-listx_refsource_BUGTRAQ
- http://marc.info/?l=vuln-dev&m=100118958310463&w=2 mailing-listx_refsource_VULN-DEV
- http://www.securityfocus.com/bid/3657 vdb-entryx_refsource_BIDPatchVendor Advisory
- http://www.securityfocus.com/bid/3663 vdb-entryx_refsource_BIDVendor Advisory
- http://www.xfree86.org/4.2.0/RELNOTES2.html#2 x_refsource_CONFIRM
- http://www.xfree86.org/security/ x_refsource_CONFIRM
- https://exchange.xforce.ibmcloud.com/vulnerabilities/7673 vdb-entryx_refsource_XF
- https://exchange.xforce.ibmcloud.com/vulnerabilities/7683 vdb-entryx_refsource_XF
| Link | Providers | Tags |
|---|---|---|
| http://cvsweb.xfree86.org/cvsweb/xc/programs/Xserver/fb/fbglyph.c | x_refsource_MISC | |
| http://marc.info/?l=bugtraq&m=100776624224549&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://marc.info/?l=bugtraq&m=100784290015880&w=2 | mailing-listx_refsource_BUGTRAQ | |
| http://marc.info/?l=vuln-dev&m=100118958310463&w=2 | mailing-listx_refsource_VULN-DEV | |
| http://www.securityfocus.com/bid/3657 | vdb-entryx_refsource_BIDPatchVendor Advisory | |
| http://www.securityfocus.com/bid/3663 | vdb-entryx_refsource_BIDVendor Advisory | |
| http://www.xfree86.org/4.2.0/RELNOTES2.html#2 | x_refsource_CONFIRM | |
| http://www.xfree86.org/security/ | x_refsource_CONFIRM | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/7673 | vdb-entryx_refsource_XF | |
| https://exchange.xforce.ibmcloud.com/vulnerabilities/7683 | vdb-entryx_refsource_XF |
Change history (0)
No recorded changes yet.