5.5

CVE-2024-47677: exfat: resolve memory leak from exfat_create_upcase_table()

Analyzed
AliasesUBUNTU-CVE-2024-47677DEBIAN-CVE-2024-47677
Published 21-10-2024Last modified 11-05-2026

Vulnerability summary

CVE-2024-47677 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.5% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.24%
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 14 · Related 16
OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1USN-7301-1USN-7303-1USN-7303-2USN-7303-3

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 11-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: exfat: resolve memory leak from exfat_create_upcase_table() If exfat_load_upcase_table reaches end and returns -EINVAL, allocated memory doesn't get freed and while exfat_load_default_upcase_table allocates more memory, leading to a memory leak. Here's link to syzkaller crash report illustrating this issue: https://syzkaller.appspot.com/text?tag=CrashReport&x=1406c201980000

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

15%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.24% 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: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu94 products
  • linux< 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-aws< 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ a13d1a4de3b0fe3c41d818697d691c886c5585fa, < f9835aec49670c46ebe2973032caaa1043b3d4da | ≥ a13d1a4de3b0fe3c41d818697d691c886c5585fa, < 331ed2c739ce656a67865f6b3ee0a478349d78cb | ≥ a13d1a4de3b0fe3c41d818697d691c886c5585fa, < c290fe508eee36df1640c3cb35dc8f89e073c8a8 | 6.8
  • linux_kernel≥ 6.8, < 6.10.13 | ≥ 6.11, < 6.11.2
Debian1 product
  • linux< 6.11.2-1

3 vendors · 97 products

References

21 links
Show all 21 references