7.5

CVE-2024-42247: wireguard: allowedips: avoid unaligned 64-bit memory accesses

Modified
AliasesUBUNTU-CVE-2024-42247DEBIAN-CVE-2024-42247
Published 07-08-2024Last modified 05-08-2026

Vulnerability summary

CVE-2024-42247 is a high (CVSS 7.5) vulnerability in linux. EPSS estimates a 0.72% chance of exploitation in the next 30 days, higher than 54.1% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.5 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.72%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 26 · Related 24
DLA-4008-1DSA-5747-1SUSE-SU-2024:3190-1SUSE-SU-2024:3194-1SUSE-SU-2024:3195-1SUSE-SU-2024:3209-1

Timeline

  1. 07-08-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: wireguard: allowedips: avoid unaligned 64-bit memory accesses On the parisc platform, the kernel issues kernel warnings because swap_endian() tries to load a 128-bit IPv6 address from an unaligned memory location: Kernel: unaligned access to 0x55f4688c in wg_allowedips_insert_v6+0x2c/0x80 [wireguard] (iir 0xf3010df) Kernel: unaligned access to 0x55f46884 in wg_allowedips_insert_v6+0x38/0x80 [wireguard] (iir 0xf2010dc) Avoid such unaligned memory accesses by instead using the get_unaligned_be64() helper macro. [Jason: replace src[8] in original patch with src+8]

CVSS metrics

5 scores · 4 sources · 2 versions

EPSS trend

Probability

0.72%

Chance of exploitation in the next 30 days

Percentile

54%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.72% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu117 products
  • linux< 5.15.0-121.131 | < 6.8.0-48.48
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.15.0-1069.75 | < 6.8.0-1018.20
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ e7096c131e5161fa3b8e52a650d7719d2857adfd, < ae630de24efb123d7199a43256396d7758f4cb75 | ≥ e7096c131e5161fa3b8e52a650d7719d2857adfd, < b4764f0ad3d68de8a0b847c05f427afb86dd54e6 | ≥ e7096c131e5161fa3b8e52a650d7719d2857adfd, < 217978a29c6ceca76d3c640bf94bdf50c268d801 | ≥ e7096c131e5161fa3b8e52a650d7719d2857adfd, < 6638a203abad35fa636d59ac47bdbc4bc100fd74 | ≥ e7096c131e5161fa3b8e52a650d7719d2857adfd, < 2fb34bf76431e831f9863cd59adc0bd1f67b0fbf | ≥ e7096c131e5161fa3b8e52a650d7719d2857adfd, < 948f991c62a4018fb81d85804eeab3029c6209f8 | 5.6
  • linux_kernel≥ 5.6, < 5.10.222 | ≥ 5.11, < 5.15.163 | ≥ 5.16, < 6.1.100 | ≥ 6.2, < 6.6.41 | ≥ 6.7, < 6.9.10
Debian1 product
  • linux< 6.1.106-1 | < 6.9.10-1

3 vendors · 120 products

References

28 links
Show all 28 references