CVE-2024-26950
What it is
In the Linux kernel, the following vulnerability has been resolved: wireguard: netlink: access device through ctx instead of peer The previous commit fixed a bug that led to a NULL peer->device being dereferenced. It's actually easier and faster performance-wise to instead get the device from ctx->wg. This semantically makes more sense too, since ctx->wg->peer_allowedips.seq is compared with ctx->allowedips_seq, basing them both in ctx. This also acts as a defence in depth provision against freed peers.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- 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: 0.2% in the next 30 days (EPSS).
- Severity: 7.8 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Weakness
- CWE-476 · NULL pointer dereference
- Record status
- Modified
Affected
- Linux Kernel < 5.10.215
- Linux Kernel < 5.15.154
- Linux Kernel < 6.1.84
- Linux Kernel < 6.6.24
- Linux Kernel < 6.7.12
- Linux Kernel < 6.8.3
- Debian Linux 10.0
Attack profile CVSS 3.1 · 7.8
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/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-2024-26950.md and follow it. Check whether this project is affected by CVE-2024-26950. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5
References
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
- https://git.kernel.org/stable/c/09c3fa70f65175861ca948cb2f0f791e666c90e5
- https://git.kernel.org/stable/c/493aa6bdcffd90a4f82aa614fe4f4db0641b4068
- https://git.kernel.org/stable/c/4be453271a882c8ebc28df3dbf9e4d95e6ac42f5
- https://git.kernel.org/stable/c/71cbd32e3db82ea4a74e3ef9aeeaa6971969c86f
- https://git.kernel.org/stable/c/93bcc1752c69bb309f4d8cfaf960ef1faeb34996
- https://git.kernel.org/stable/c/c991567e6c638079304cc15dff28748e4a3c4a37
- https://git.kernel.org/stable/c/d44bd323d8bb8031eef4bdc44547925998a11e47
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html