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CVE-2011-1930
In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$DEVICE.conf are not properly escaped. This may allow a…
Critical9.8EPSS 20.5%
- Published
- Updated
- Reserved
- Assigned by
- redhat
Description
In klibc 1.5.20 and 1.5.21, the DHCP options written by ipconfig to /tmp/net-$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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 20.5% · top 2.5% of all CVEs (2 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
- Other
Affected products
klibc · klibc
- affected 1.5.20
- affected 1.5.21
References (5)
- https://security-tracker.debian.org/tracker/CVE-2011-1930 (opens in a new tab)x_refsource_MISCx_transferred
- https://access.redhat.com/security/cve/cve-2011-1930 (opens in a new tab)x_refsource_MISCx_transferred
- http://security.gentoo.org/glsa/glsa-201309-21.xml (opens in a new tab)x_refsource_MISCx_transferred
- http://www.openwall.com/lists/oss-security/2012/05/22/12 (opens in a new tab)x_refsource_MISCx_transferred
- http://www.securityfocus.com/bid/47924 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .