CVE-2024-41044: ppp: reject claimed-as-LCP but actually malformed packets
In the Linux kernel, the following vulnerability has been resolved:
ppp: reject claimed-as-LCP but actually malformed packets
Since 'pppasyncencode()' assumes valid LCP packets (with code from 1 to 7 inclusive), add 'pppcheckpacket()' to ensure that LCP packet has an actual body beyond PPPLCP header bytes, and reject claimed-as-LCP but actually malformed data otherwise.
Other sources
Linux Kernel is vulnerable to a denial of service, caused by an error related to pppasyncencode() in pppgeneric.c. A local authenticated attacker could exploit this vulnerability to cause a denial of service.
— IBM
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 4.19.318 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 5.4.280 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 5.10.222 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 5.15.163 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.1.100 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.6.41 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.9.10 - Upgrade
Upgrade
redhat/kernelto a version that resolves this vulnerability.Fixed in 6.10 - Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1 - Upgrade
Upgrade
debian/linux-6.1to a version that resolves this vulnerability.Fixed in 6.1.129-1~deb11u1
Event History
Frequently Asked Questions
What is the severity of CVE-2024-41044?
CVE-2024-41044 is categorized as a moderate severity vulnerability in the Linux kernel.
How do I fix CVE-2024-41044?
To fix CVE-2024-41044, upgrade the kernel to a version that is patched, such as 4.19.318, 5.4.280, 5.10.222, or newer.
What types of systems are affected by CVE-2024-41044?
CVE-2024-41044 affects systems running vulnerable versions of the Linux kernel, such as those from Red Hat and Debian.
What are the indicators of compromise related to CVE-2024-41044?
Indicators of compromise for CVE-2024-41044 may include unexpected crashes or instability in systems using the PPP protocol.
Is there a specific patch available for CVE-2024-41044?
Yes, a specific patch for CVE-2024-41044 has been included in kernel versions 4.19.318 and later.