5.5

CVE-2024-49877: linux NULL Pointer Dereference

CVSS: 5.5v3.1MediumModified
AliasesUBUNTU-CVE-2024-49877DEBIAN-CVE-2024-49877
Published 21-10-2024Last modified 23-05-2026
Open JSON

Vulnerability summary

CVE-2024-49877 is a medium (CVSS 5.5) NULL Pointer Dereference vulnerability in linux. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.2% of scored vulnerabilities.

Overall risk
22/100
0100
Low · default modelHow is this calculated?
CVSS score
5.5/10
010
Medium · v3.1 (NVD)
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 50 · Related 48
DLA-4008-1DLA-4075-1MGASA-2024-0344MGASA-2024-0345OPENSUSE-SU-2024:14500-1OPENSUSE-SU-2025:14705-1

Timeline

  1. 21-10-2024
    PublishedVulnerability first disclosed.
  2. 23-05-2026
    Last modifiedVulnerability information updated.

Description

In the Linux kernel, the following vulnerability has been resolved: ocfs2: fix possible null-ptr-deref in ocfs2_set_buffer_uptodate When doing cleanup, if flags without OCFS2_BH_READAHEAD, it may trigger NULL pointer dereference in the following ocfs2_set_buffer_uptodate() if bh is NULL.

CVSS metrics

3 scores · 3 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

Ubuntu134 products
  • linuxAll versions (No fix recorded) | < 5.4.0-208.228 | < 5.15.0-127.137 | < 6.8.0-54.56
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.4.0-1140.150 | < 5.15.0-1073.79 | < 6.8.0-1023.25
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Linux2 products
  • linux≥ 6c150df9c2e80b5cf86f5a0d98beb7390ad63bfc, < 190d98bcd61117a78fe185222d162180f061a6ca | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < e68c8323355e8cedfbe0bec7d5a39009f61640b6 | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < 61b84013e560382cbe7dd56758be3154d43a3988 | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < df944dc46d06af65a75191183d52be017e6b9dbe | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < 01cb2e751cc61ade454c9bc1aaa2eac1f8197112 | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < d52c5652e7dcb7a0648bbb8642cc3e617070ab49 | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < 46b1edf0536a5291a8ad2337f88c926214b209d9 | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < 4846e72ab5a0726e49ad4188b9d9df091ae78c64 | ≥ cf76c78595ca87548ca5e45c862ac9e0949c4687, < 33b525cef4cff49e216e4133cc48452e11c0391e | 01f93d5e36753fc4d06ec67f05ce78c9c6f2dd56 | 65cbd1279f4b999d56a838344a30642db24cd215 | 97e1db17bc1ef4c2e1789bc9323c7be44fba53f8 | ≥ 4.19.87, < 4.19.323 | ≥ 4.4.204, < 4.5 | ≥ 4.9.204, < 4.10 | ≥ 4.14.157, < 4.15 | 4.20
  • linux_kernelEOL≥ 4.20, < 5.10.227 | ≥ 5.11, < 5.15.168 | ≥ 5.16, < 6.1.113 | ≥ 6.2, < 6.6.55 | ≥ 6.7, < 6.10.14 | ≥ 6.11, < 6.11.3 | 4.4.204 | 4.9.204 | 4.14.157 | 4.19.87
Debian1 product
  • linux< 6.1.115-1 | < 6.11.4-1

3 vendors · 137 products

References

49 links
Show all 49 references