netfilter: conntrack: remove sprintf usage
Summary
| CVE | CVE-2026-53002 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-06-24 17:17:11 UTC |
| Updated | 2026-07-15 01:16:26 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: netfilter: conntrack: remove sprintf usage Replace it with scnprintf, the buffer sizes are expected to be large enough to hold the result, no need for snprintf+overflow check. Increase buffer size in mangle_content_len() while at it. BUG: KASAN: stack-out-of-bounds in vsnprintf+0xea5/0x1270 Write of size 1 at addr [..] vsnprintf+0xea5/0x1270 sprintf+0xb1/0xe0 mangle_content_len+0x1ac/0x280 nf_nat_sdp_session+0x1cc/0x240 process_sdp+0x8f8/0xb80 process_invite_request+0x108/0x2b0 process_sip_msg+0x5da/0xf50 sip_help_tcp+0x45e/0x780 nf_confirm+0x34d/0x990 [..] |
Risk And Classification
Primary CVSS: v3.1 7 HIGH from ADP
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.003510000 probability, percentile 0.272230000 (date 2026-07-13)
Problem Types: CWE-787 | CWE-787 Out-of-bounds Write
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | ADP | CVSS | 7 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | Secondary | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | Secondary | 7 | HIGH | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | DECLARED | 9.8 | CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
HighPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Linux | Linux Kernel | All | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 2f793ba78470a99f40389b7dc60a81d9f5ad3956 git | Not specified |
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 6bbf829b4c1b44c941c47dd0d710f1393258f3d5 git | Not specified |
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 ab64e61c9323fa6de21bd20da1ddb29a0fb65d34 git | Not specified |
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e git | Not specified |
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 a8e0a32a23d3f34862af3b4da792ecb3a891a9a3 git | Not specified |
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 8e3be0d12615a173fe260cd42753ca7a001acbf2 git | Not specified |
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 c08ff52e44945e6ef4ce0790f49ea761b060c45b git | Not specified |
| CNA | Linux | Linux | affected 9fafcd7b203229c3f3893a475741afc27e276306 6e7066bdb481a87fe88c4fa563e348c03b2d373d git | Not specified |
| CNA | Linux | Linux | affected 2.6.20 | Not specified |
| CNA | Linux | Linux | unaffected 2.6.20 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.258 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.209 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.175 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.141 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.91 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.33 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.10 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 10 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 6 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 7 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 7 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 8 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 8 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 9 | Not specified | Not specified |
| ADP | Red Hat | Red Hat Enterprise Linux 9 | Not specified | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| bugzilla.redhat.com/show_bug.cgi | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | bugzilla.redhat.com | Third Party Advisory |
| git.kernel.org/stable/c/2f793ba78470a99f40389b7dc60a81d9f5ad3956 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/6bbf829b4c1b44c941c47dd0d710f1393258f3d5 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53002.json | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | security.access.redhat.com | Third Party Advisory |
| git.kernel.org/stable/c/ab64e61c9323fa6de21bd20da1ddb29a0fb65d34 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/8e3be0d12615a173fe260cd42753ca7a001acbf2 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/6e7066bdb481a87fe88c4fa563e348c03b2d373d | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| access.redhat.com/security/cve/CVE-2026-53002 | 0b0ca135-0b70-47e7-9f44-1890c2a1c46c | access.redhat.com | Third Party Advisory |
| git.kernel.org/stable/c/c08ff52e44945e6ef4ce0790f49ea761b060c45b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| git.kernel.org/stable/c/a8e0a32a23d3f34862af3b4da792ecb3a891a9a3 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | Patch |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| ADP | 2026-06-24T00:00:00.000Z | Reported to Red Hat. |
| ADP | 2026-06-24T00:00:00.000Z | Made public. |
There are currently no legacy QID mappings associated with this CVE.