CVEvulnerability
CVE-2026-53002
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2026-06-24
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 3.1 (0b0ca135-0b70-47e7-9f44-1890c2a1c46c)
- 7.0 HIGH — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-787
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
[..]
Affected configurations
• linux linux kernel (>= 2.6.20 < 5.10.258)
• linux linux kernel (>= 5.11 < 5.15.209)
• linux linux kernel (>= 5.16 < 6.1.175)
• linux linux kernel (>= 6.2 < 6.6.141)
• linux linux kernel (>= 6.7 < 6.12.91)
• linux linux kernel (>= 6.13 < 6.18.33)
• linux linux kernel (>= 6.19 < 7.0.10)
• redhat enterprise linux 7.0
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-787 Out-of-bounds Write weakness
References
- https://git.kernel.org/stable/c/1c9fb8aeed06790d42cdcd00f6c3ce0b9e926c1e Patch
- https://git.kernel.org/stable/c/2f793ba78470a99f40389b7dc60a81d9f5ad3956 Patch
- https://git.kernel.org/stable/c/6bbf829b4c1b44c941c47dd0d710f1393258f3d5 Patch
- https://git.kernel.org/stable/c/6e7066bdb481a87fe88c4fa563e348c03b2d373d Patch
- https://git.kernel.org/stable/c/8e3be0d12615a173fe260cd42753ca7a001acbf2 Patch
- https://git.kernel.org/stable/c/a8e0a32a23d3f34862af3b4da792ecb3a891a9a3 Patch
- https://git.kernel.org/stable/c/ab64e61c9323fa6de21bd20da1ddb29a0fb65d34 Patch
- https://git.kernel.org/stable/c/c08ff52e44945e6ef4ce0790f49ea761b060c45b Patch
- https://access.redhat.com/errata/RHSA-2026:64770 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:66000 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:66180 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-53002 Third Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2492329 Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html cert-portal.siemens.com
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html cert-portal.siemens.com
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53002.json Third Party Advisory