CVE-2024-26816
What it is
In the Linux kernel, the following vulnerability has been resolved: x86, relocs: Ignore relocations in .notes section When building with CONFIG_XEN_PV=y, .text symbols are emitted into the .notes section so that Xen can find the "startup_xen" entry point. This information is used prior to booting the kernel, so relocations are not useful. In fact, performing relocations against the .notes section means that the KASLR base is exposed since /sys/kernel/notes is world-readable. To avoid leaking the KASLR base without breaking unprivileged tools that are expecting to read /sys/kernel/notes, skip performing relocations in the .notes section. The values readable in .notes are then identical to those found in System.map.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.3% 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: 0.3% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.3% · EPSS, next 30 days
- Weakness
- CWE-770 · Allocation without limits
- Record status
- Modified
Affected
- Linux Kernel < 4.19.311
- Linux Kernel < 5.4.273
- Linux Kernel < 5.10.214
- Linux Kernel < 5.15.153
- Linux Kernel < 6.1.83
- Linux Kernel < 6.6.23
- Linux Kernel < 6.7.11
- Linux Kernel < 6.8.2
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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-2024-26816.md and follow it. Check whether this project is affected by CVE-2024-26816. 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/13edb509abc91c72152a11baaf0e7c060a312e03
- https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723
- https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088
- https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40
- https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a
- https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b
- https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa
- https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c
- https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af
- https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03
References
- https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03
- https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723
- https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088
- https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40
- https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a
- https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b
- https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa
- https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c
- https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af
- https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03
- https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723
- https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088
- https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40
- https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a
- https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b
- https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa
- https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c
- https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://cert-portal.siemens.com/productcert/html/ssa-265688.html