7.8

CVE-2023-52679: debian debian_linux Double Free

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2023-52679DEBIAN-CVE-2023-52679
Published 17-05-2024Last modified 05-08-2026
Open JSON

Vulnerability summary

CVE-2023-52679 is a high (CVSS 7.8) Double Free vulnerability in debian debian_linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.25%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 22 · Related 18
DLA-3840-1DLA-3841-1RHSA-2024:5101RHSA-2024:5102RHSA-2024:9315RHSA-2025:1658

Timeline

  1. 17-05-2024
    PublishedVulnerability first disclosed.
  2. 05-08-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: of: Fix double free in of_parse_phandle_with_args_map In of_parse_phandle_with_args_map() the inner loop that iterates through the map entries calls of_node_put(new) to free the reference acquired by the previous iteration of the inner loop. This assumes that the value of "new" is NULL on the first iteration of the inner loop. Make sure that this is true in all iterations of the outer loop by setting "new" to NULL after its value is assigned to "cur". Extend the unittest to detect the double free and add an additional test case that actually triggers this path.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.25%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

0.00 pp

From 0.25% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.25%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu112 products
  • linux< 5.4.0-176.196 | < 5.15.0-102.112
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 5.4.0-1122.132 | < 5.15.0-1057.63
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian2 products
Linux2 products
  • linux≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < 26b4d702c44f9e5cf3c5c001ae619a4a001889db | ≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < a0a061151a6200c13149dbcdb6c065203c8425d2 | ≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < d5f490343c77e6708b6c4aa7dbbfbcbb9546adea | ≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < 4541004084527ce9e95a818ebbc4e6b293ffca21 | ≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < b9d760dae5b10e73369b769073525acd7b3be2bd | ≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < b64d09a4e8596f76d27f4b4a90a1cf6baf6a82f8 | ≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < cafa992134124e785609a406da4ff2b54052aff7 | ≥ bd6f2fd5a1d52198468c5cdc3c2472362dff5aaa, < 4dde83569832f9377362e50f7748463340c5db6b | 4.17
  • linux_kernel≥ 4.17, < 4.19.306 | ≥ 4.20, < 5.4.268 | ≥ 5.5, < 5.10.209 | ≥ 5.11, < 5.15.148 | ≥ 5.16, < 6.1.75 | ≥ 6.2, < 6.6.14 | ≥ 6.7, < 6.7.2

3 vendors · 116 products

References

22 links
Show all 22 references