8.6

CVE-2024-2398: HTTP/2 push headers memory-leak

Modified
AliasesALPINE-CVE-2024-2398RHSA-2024:3998RHSA-2024:5529
Published 27-03-2024Last modified 15-10-2026

Vulnerability summary

CVE-2024-2398 is a high (CVSS 8.6) vulnerability in apple macos. EPSS estimates a 36.08% chance of exploitation in the next 30 days, higher than 98.4% of scored vulnerabilities. 1 public exploit is recorded.

Priority
Prioritisepublic exploit

Public exploit (reference, Date unknown)

Source freshness unavailable

How is this decided?
CVSS score
8.6/10
010
High · v3.1 (CVE.org)
EPSS score
36.08%
0%100%
High · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 11 · Related 11
MGASA-2024-0099OPENSUSE-SU-2024:13805-1RHSA-2024:2693SUSE-SU-2024:1120-1SUSE-SU-2024:1150-1SUSE-SU-2024:1151-1

Timeline

  1. 27-03-2024
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

Description

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application.

CVSS metrics

8 scores · 8 sources · 1 version

EPSS trend

Probability

36.08%

Chance of exploitation in the next 30 days

Percentile

98%

Versus all other CVEs

30-day change

No change 0.00 pp

From 36.08% 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

1 found
  • referenceUnverified

    Exploit Reference (hackerone.com)

    Maturity: unknown

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.

Netapp11 products
Redhat10 products
  • curl< 0:7.76.1-23.el9_2.7 | < 0:7.76.1-29.el9_4.1 | < 0:7.61.1-34.el8_10.2
  • curl-debuginfo< 0:7.76.1-23.el9_2.7 | < 0:7.76.1-29.el9_4.1 | < 0:7.61.1-34.el8_10.2
  • curl-debugsource< 0:7.76.1-23.el9_2.7 | < 0:7.76.1-29.el9_4.1 | < 0:7.61.1-34.el8_10.2
  • curl-minimal< 0:7.76.1-23.el9_2.7 | < 0:7.76.1-29.el9_4.1
  • curl-minimal-debuginfo< 0:7.76.1-23.el9_2.7 | < 0:7.76.1-29.el9_4.1 | < 0:7.61.1-34.el8_10.2
Chainguard2 products
  • curl< 8.7.1-r0
  • libcurl4All versions (No fix recorded)
Wolfi2 products
  • curl< 8.7.1-r0
  • libcurl4All versions (No fix recorded)
Alpine1 product
  • curl≥ 7.44.0, < 8.7.1-r0
Apple1 product
  • macos< 12.7.6 | ≥ 13.0, < 13.6.8 | ≥ 14.0, < 14.6
Curl1 product
  • curl8.6.0 | 8.5.0 | 8.4.0 | 8.3.0 | 8.2.1 | 8.2.0 | 8.1.2 | 8.1.1 | 8.1.0 | 8.0.1 | 8.0.0 | 7.88.1 | 7.88.0 | 7.87.0 | 7.86.0 | 7.85.0 | 7.84.0 | 7.83.1 | 7.83.0 | 7.82.0 | 7.81.0 | 7.80.0 | 7.79.1 | 7.79.0 | 7.78.0 | 7.77.0 | 7.76.1 | 7.76.0 | 7.75.0 | 7.74.0 | 7.73.0 | 7.72.0 | 7.71.1 | 7.71.0 | 7.70.0 | 7.69.1 | 7.69.0 | 7.68.0 | 7.67.0 | 7.66.0 | 7.65.3 | 7.65.2 | 7.65.1 | 7.65.0 | 7.64.1 | 7.64.0 | 7.63.0 | 7.62.0 | 7.61.1 | 7.61.0 | 7.60.0 | 7.59.0 | 7.58.0 | 7.57.0 | 7.56.1 | 7.56.0 | 7.55.1 | 7.55.0 | 7.54.1 | 7.54.0 | 7.53.1 | 7.53.0 | 7.52.1 | 7.52.0 | 7.51.0 | 7.50.3 | 7.50.2 | 7.50.1 | 7.50.0 | 7.49.1 | 7.49.0 | 7.48.0 | 7.47.1 | 7.47.0 | 7.46.0 | 7.45.0 | 7.44.0
Debian1 product
  • curl< 7.88.1-10+deb12u6 | < 8.7.1-1
Fedoraproject1 product
Haxx1 product
  • curl≥ 7.44.0, < 8.7.0
Ubuntu1 product
  • curl< 7.68.0-1ubuntu2.22 | < 7.81.0-1ubuntu1.16 | < 8.5.0-2ubuntu10.1 | < 7.47.0-1ubuntu2.19+esm12 | < 7.58.0-2ubuntu3.24+esm4

11 vendors · 32 products

References

35 links
Show all 35 references