CVE-2024-26816
Xen PV Linux KASLR Information Leak
Description
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.
INFO
Published Date :
April 10, 2024, 2:15 p.m.
Last Modified :
March 27, 2025, 9:10 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-26816.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-26816 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-26816 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 27, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-770 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.7.11 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.23 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.83 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.11 up to (excluding) 5.15.153 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.5 up to (excluding) 5.10.214 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20 up to (excluding) 5.4.273 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 2.6.23 up to (excluding) 4.19.311 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8 up to (excluding) 6.8.2 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.8.3 up to (including) 6.8.12 Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Added Reference Type CVE: https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40 Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c Types: Patch Added Reference Type CVE: https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af Types: Patch Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Types: Mailing List Added Reference Type CVE: https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html Types: Mailing List -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03 Added Reference https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723 Added Reference https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088 Added Reference https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40 Added Reference https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a Added Reference https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b Added Reference https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa Added Reference https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c Added Reference https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Added Reference https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 05, 2024
Action Type Old Value New Value Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html Removed Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 27, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jun. 25, 2024
Action Type Old Value New Value Added Reference kernel.org https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html [No types assigned] -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 29, 2024
Action Type Old Value New Value -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 14, 2024
Action Type Old Value New Value -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Apr. 10, 2024
Action Type Old Value New Value Added Description 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. Added Reference kernel.org https://git.kernel.org/stable/c/13edb509abc91c72152a11baaf0e7c060a312e03 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/52018aa146e3cf76569a9b1e6e49a2b7c8d4a088 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/a4e7ff1a74274e59a2de9bb57236542aa990d20a [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/c7cff9780297d55d97ad068b68b703cfe53ef9af [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/47635b112a64b7b208224962471e7e42f110e723 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/af2a9f98d884205145fd155304a6955822ccca1c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/ae7079238f6faf1b94accfccf334e98b46a0c0aa [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/5cb59db49c9c0fccfd33b2209af4f7ae3c6ddf40 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/aaa8736370db1a78f0e8434344a484f9fd20be3b [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-26816 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-26816
weaknesses.