CVE-2011-1930
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 20.5% chance of exploitation in the next 30 days (EPSS). Higher than most.
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 20.5% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: none linked yet, which raises it.
Details
- Published
- Last modified
- Exploit probability
- 20.5% · EPSS, next 30 days
- Record status
- Modified
Affected
- Klibc Project Klibc < 1.5.25
- Debian Linux 8.0
- Debian Linux 9.0
- Debian Linux 10.0
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2011-1930.md and follow it. Check whether this project is affected by CVE-2011-1930. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
References
- http://security.gentoo.org/glsa/glsa-201309-21.xml
- http://www.openwall.com/lists/oss-security/2012/05/22/12
- http://www.securityfocus.com/bid/47924
- https://access.redhat.com/security/cve/cve-2011-1930
- https://security-tracker.debian.org/tracker/CVE-2011-1930
- http://security.gentoo.org/glsa/glsa-201309-21.xml
- http://www.openwall.com/lists/oss-security/2012/05/22/12
- http://www.securityfocus.com/bid/47924
- https://access.redhat.com/security/cve/cve-2011-1930
- https://security-tracker.debian.org/tracker/CVE-2011-1930