CVSS 3.1
Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)
Атакува се
Време до експлоатация
Атакува се по мрежата, без особени условия, без вход и без действие от потребителя.
- Експлоатация: няма данни за експлоатация
- Атаката може да се автоматизира
Описание
Оригинално описание
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_sip: fix Content-Length u32 truncation in sip_help_tcp() sip_help_tcp() parses the SIP Content-Length header with simple_strtoul(), which returns unsigned long, but stores the result in unsigned int clen. On 64-bit systems, values exceeding UINT_MAX are silently truncated before computing the SIP message boundary. For example, Content-Length 4294967328 (2^32 + 32) is truncated to 32, causing the parser to miscalculate where the current message ends. The loop then treats trailing data in the TCP segment as a second SIP message and processes it through the SDP parser. Fix this by changing clen to unsigned long to match the return type of simple_strtoul(), and reject Content-Length values that exceed the remaining TCP payload length.
Засегнати продукти
- Linux Linux: f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди ed81b6a7012485acdb9c6c80735a0b7d8e5e1873; f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди cd1b7403ec835f8a0b3f1f7e68ac26af2cb1e42f; f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди b75209debb9adab287b3caa982f77788c1e15027; f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди 528b4509c9dfc272e2e92d811915e5211650d383; f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди 75fcaee5170e7dbbee778927134ef2e9568b4659; f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди 865dba58958c3a86786f89a501971ab0e3ec6ba9; f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди d4f17256544cc37f6534a14a27a9dec3540c2015; f5b321bd37fbec9188feb1f721ab46a5ac0b35da преди fbce58e719a17aa215c724473fd5baaa4a8dc57c
- Linux Linux: 2.6.34; преди 2.6.34; 5.10.253 до 5.10.*; 5.15.203 до 5.15.*; 6.1.167 до 6.1.*; 6.6.130 до 6.6.*; 6.12.78 до 6.12.*; 6.18.20 до 6.18.*; 6.19.10 до 6.19.*; от 7.0 нататък
Siemens: още 3 продукта, добавени от Siemens
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP, SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP, SIPLUS S7-1500 CPU 1518-4 PN/DP MFP
Вид слабост
История
- 3 април 2026 Публикувано
Други уязвимости в Linux Linux
Първоизточници
- https://www.cve.org/CVERecord?id=CVE-2026-23457
- https://nvd.nist.gov/vuln/detail/CVE-2026-23457
- https://git.kernel.org/stable/c/ed81b6a7012485acdb9c6c80735a0b7d8e5e1873
- https://git.kernel.org/stable/c/cd1b7403ec835f8a0b3f1f7e68ac26af2cb1e42f
- https://git.kernel.org/stable/c/b75209debb9adab287b3caa982f77788c1e15027
- https://git.kernel.org/stable/c/528b4509c9dfc272e2e92d811915e5211650d383
- https://git.kernel.org/stable/c/75fcaee5170e7dbbee778927134ef2e9568b4659
- https://git.kernel.org/stable/c/865dba58958c3a86786f89a501971ab0e3ec6ba9
- https://git.kernel.org/stable/c/d4f17256544cc37f6534a14a27a9dec3540c2015
- https://git.kernel.org/stable/c/fbce58e719a17aa215c724473fd5baaa4a8dc57c
- https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- https://cert-portal.siemens.com/productcert/html/ssa-457936.html