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CVE-2026-6238Buffer overread in ns_printrrf with corrupted RDATA field

The GNU C Library glibc; Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP; Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP; Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP Yayım: (6 ay önce)

Açıklama

The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.0.1 to version 2.43 fail to validate the RDATA content against the RDATA length in a DNS response when processing A6, CERT, LOC, TKEY or TSIG records, which may allow an attacker to craft a DNS response, causing a target application to crash or read uninitialized memory. These functions are for application debugging only and hence not in the path of code executed by the DNS resolver. Further, they have been deprecated since version 2.34 and should not be used by any new applications. Applications should consider porting away from these interfaces since they may be removed in future versions.

Zayıflık türü (CWE): CWE-126

Veri: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Bilgiler kaynaktaki haliyle, İngilizce yayımlanır.

Etkilenen ürünler ve sürümler

ÜreticiÜrünSürümler
gnu glibc 2.2 –
The GNU C Library glibc 2.0.1 – ≤ 2.43
Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP V3.1.5 – < V3.1.6
Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP V3.1.5 – < V3.1.6
Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP V3.1.5 – < V3.1.6

Kaynaklar ve yamalar

CPE eşleşmeleri (NVD) (1)

  • cpe:2.3:a:gnu:glibc:*:*:*:*:*:*:*:* ≥ 2.2