01 Record

CVE-2024-56643

dccp: Fix memory leak in dccp_feat_change_recv

LowPUBLISHEDCNA: Linux

CNA base score3.3 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

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02 Description

dccp: Fix memory leak in dccp_feat_change_recv

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.22% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 13.5% of scored records. A rank, not a probability.

NVD base score

5.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2024-12-27 15:02Z1 YR AGO

Last updated

2026-05-11 20:56Z5 MO AGO

Reserved

2024-12-27

Assigning CNA

Linux

Record state

PUBLISHED

Severity

Low (CVSS 3.3)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weaknesses

CWE-401Missing Release of Memory after Effective LifetimeVariant

Data version

5.2

Document digest

a113f111e4542e4f5039a4f3a21beeb12172371440fcfde2559f04686ca982d0

05 Affected products

VendorProductVersionsPlatforms

LinuxLinuxe77b8363b2ea7c0d89919547c1a8b0562f298b57 to < 623be080ab3c13d71570bd32f7202a8efa8e2252, e77b8363b2ea7c0d89919547c1a8b0562f298b57 to < c99507fff94b926fc92279c92d80f229c91cb85d, e77b8363b2ea7c0d89919547c1a8b0562f298b57 to < bc3d4423def1a9412a0ae454cb4477089ab79276, e77b8363b2ea7c0d89919547c1a8b0562f298b57 to < 6ff67909ee2ffad911e3122616df41dee23ff4f6, e77b8363b2ea7c0d89919547c1a8b0562f298b57 to < d3ec686a369fae5034303061f003cd3f94ddfd23, e77b8363b2ea7c0d89919547c1a8b0562f298b57 to < 9ee68b0f23706a77f53c832457b9384178b76421, e77b8363b2ea7c0d89919547c1a8b0562f298b57 to < 22be4727a8f898442066bcac34f8a1ad0bc72e14, 2.6.29—

06 References

git.kernel.orghttps://git.kernel.org/stable/c/623be080ab3c13d71570bd32f7202a8efa8e2252
git.kernel.orghttps://git.kernel.org/stable/c/c99507fff94b926fc92279c92d80f229c91cb85d
git.kernel.orghttps://git.kernel.org/stable/c/bc3d4423def1a9412a0ae454cb4477089ab79276
git.kernel.orghttps://git.kernel.org/stable/c/6ff67909ee2ffad911e3122616df41dee23ff4f6
git.kernel.orghttps://git.kernel.org/stable/c/d3ec686a369fae5034303061f003cd3f94ddfd23
git.kernel.orghttps://git.kernel.org/stable/c/9ee68b0f23706a77f53c832457b9384178b76421
git.kernel.orghttps://git.kernel.org/stable/c/22be4727a8f898442066bcac34f8a1ad0bc72e14
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
lists.debian.orghttps://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

07 Fixed in

Debian 12

linux
Fixed in 6.1.123-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

linux
Fixed in 6.12.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

linux
Fixed in 6.12.5-1

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.