In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped
Published Nov 14, 2019
9.8
CRITICALCVSS 3.1
EPSS 20.53%
Description
In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped. This may allow a remote attacker to send a specially crafted DHCP reply which could execute arbitrary code with the privileges of any process which sources DHCP options.
Affected products
-
- Version 1.5.20StatusaffectedConstraints-
- Version 1.5.21StatusaffectedConstraints-
- Version
Configuration 1
- < 1.5.25
Configuration 2
- 8.0
- 9.0
- 10.0
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
No CVSS v3.0 score for this CVE.
AV:N/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 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 (11 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 20.53% (0.20533) | 97.45th | v5 (v2026.06.15) |
| Jun 15, 2026 | 20.53% (0.20533) | 97.18th | v5 (v2026.06.15) |
| Mar 30, 2025 | 28.99% (0.28991) | 96.17th | v4 (v2025.03.14) |
| Mar 29, 2025 | 48.82% (0.48824) | 96.73th | v4 (v2025.03.14) |
| Mar 24, 2025 | 28.99% (0.28991) | 96.14th | v4 (v2025.03.14) |
| Mar 17, 2025 | 38.39% (0.38386) | 96.89th | v4 (v2025.03.14) |
| Dec 12, 2024 | 4.21% (0.04209) | 92.55th | v3 (v2023.03.01) |
| Mar 7, 2023 | 4.99% (0.04988) | 91.58th | v3 (v2023.03.01) |
| Mar 6, 2023 | 12.75% (0.12753) | 95.58th | v2 (v2022.01.01) |
| Apr 1, 2022 | 12.75% (0.12753) | 95.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 12.75% (0.12753) | 90.05th | v2 (v2022.01.01) |
No CWE recorded.
References (5)
- http://security.gentoo.org/glsa/glsa-201309-21.xml x_refsource_MISCThird Party Advisory
- http://www.openwall.com/lists/oss-security/2012/05/22/12 x_refsource_MISCMailing ListThird Party Advisory
- http://www.securityfocus.com/bid/47924 x_refsource_MISCThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/cve-2011-1930 x_refsource_MISCNot ApplicableThird Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2011-1930 x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://security.gentoo.org/glsa/glsa-201309-21.xml | x_refsource_MISCThird Party Advisory | |
| http://www.openwall.com/lists/oss-security/2012/05/22/12 | x_refsource_MISCMailing ListThird Party Advisory | |
| http://www.securityfocus.com/bid/47924 | x_refsource_MISCThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/cve-2011-1930 | x_refsource_MISCNot ApplicableThird Party Advisory | |
| https://security-tracker.debian.org/tracker/CVE-2011-1930 | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.