CVE-2024-26641 — Use of Uninitialized Resource in Linux

CWE-908 — Use of Uninitialized ResourceCWE-20 — Improper Input Validation49 documents7 sources
Severity
5.5MEDIUMNVD
OSV7.8OSV7.5OSV6.5
EPSS
0.0%
top 97.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
LinuxLinux KernelDebian Linux+1 more
Timeline
PublishedMar 18
Latest updateNov 19

Description

In the Linux kernel, the following vulnerability has been resolved: ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv() syzbot found __ip6_tnl_rcv() could access unitiliazed data [1]. Call pskb_inet_may_pull() to fix this, and initialize ipv6h variable after this call as it can change skb->head. [1] BUG: KMSAN: uninit-value in __INET_ECN_decapsulate include/net/inet_ecn.h:253 [inline] BUG: KMSAN: uninit-value in INET_ECN_decapsulate include/net/inet_ecn.h:275 [inline] BUG: KMSAN: u…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages5 packages

▶NVDlinux/linux_kernel4.7 — 5.10.210+5
▶Debianlinux/linux_kernel< 5.10.216-1+3
▶Ubuntulinux/linux_kernel< 5.4.0-200.220+2
▶CVEListV5linux/linux0d3c703a9d1723c7707e0680019ac8ff5922db42 — a9bc32879a08f23cdb80a48c738017e39aea1080+6
▶debiandebian/linux< linux 6.1.82-1 (bookworm)

Also affects: Debian Linux 10.0

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

24
OSV
linux-iot vulnerabilities↗2024-11-19
▶
OSV
linux-raspi, linux-raspi-5.4 vulnerabilities↗2024-11-14
▶
OSV
linux-aws, linux-azure-5.4, linux-kvm, linux-oracle, linux-xilinx-zynqmp vulnerabilities↗2024-11-07
▶
OSV
linux-aws-5.4, linux-oracle-5.4 vulnerabilities↗2024-11-06
▶
OSV
linux-azure, linux-bluefield vulnerabilities↗2024-11-04
▶

📋Vendor Advisories

23
Ubuntu
Linux kernel (IoT) vulnerabilities↗2024-11-19
▶
Ubuntu
Linux kernel vulnerabilities↗2024-11-14
▶
Ubuntu
Linux kernel vulnerabilities↗2024-11-07
▶
Ubuntu
Linux kernel vulnerabilities↗2024-11-06
▶
Ubuntu
Linux kernel vulnerabilities↗2024-11-04
▶

💬Community

1
Bugzilla
CVE-2024-26641 kernel: ip6_tunnel: make sure to pull inner header in __ip6_tnl_rcv()↗2024-03-18
▶