Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before ed81b6a7012485acdb9c6c80735a0b7d8e5e1873; affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before cd1b7403ec835f8a0b3f1f7e68ac26af2cb1e42f; affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before b75209debb9adab287b3caa982f77788c1e15027; affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before 528b4509c9dfc272e2e92d811915e5211650d383; affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before 75fcaee5170e7dbbee778927134ef2e9568b4659; affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before 865dba58958c3a86786f89a501971ab0e3ec6ba9; affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before d4f17256544cc37f6534a14a27a9dec3540c2015; affected f5b321bd37fbec9188feb1f721ab46a5ac0b35da before fbce58e719a17aa215c724473fd5baaa4a8dc57c |
| Linux / Linux | affected 2.6.34; unaffected 0 before 2.6.34; unaffected 5.10.253 through 5.10.*; unaffected 5.15.203 through 5.15.*; unaffected 6.1.167 through 6.1.*; unaffected 6.6.130 through 6.6.*; unaffected 6.12.78 through 6.12.*; unaffected 6.18.20 through 6.18.*; unaffected 6.19.10 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- 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
ADP enrichment
No English description supplied.
No English description supplied.
No references supplied.