Описание
A vulnerability was determined in dnsmasq up to 2.73rc6. Affected by this issue is the function parse_dhcp_opt of the file src/option.c of the component Config File Handler. This manipulation of the argument m causes null pointer dereference. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
A vulnerability was determined in dnsmasq up to 2.73rc6. Affected by this issue is the function parse_dhcp_opt of the file src/option.c of the component Config File Handler. This manipulation of the argument m causes null pointer dereference. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2025-12200
- https://lists.thekelleys.org.uk/pipermail/dnsmasq-discuss/2025q4/018337.html
- https://news.ycombinator.com/item?id=45727137
- https://shimo.im/docs/5xkGoMo0WVfY4dkX
- https://vuldb.com/?ctiid.329870
- https://vuldb.com/?id.329870
- https://vuldb.com/?submit.673155
- https://www.openwall.com/lists/oss-security/2025/10/27/1
Связанные уязвимости
Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: Based on the analysis by MITRE and review of community feedback, the reported conditions represent expected and intentional behavior within dnsmasq's documented design, rather than security vulnerabilities.
A flaw was found in dnsmasq. A local attacker could exploit a null pointer dereference vulnerability in the `parse_dhcp_opt` function within the Config File Handler component by manipulating an argument. This could lead to a denial of service.
Rejected reason: ** REJECT ** DO NOT USE THIS CANDIDATE NUMBER. ConsultIDs: none. Reason: This candidate was withdrawn by its CNA. Further investigation showed that it was not a security issue. Notes: Based on the analysis by MITRE and review of community feedback, the reported conditions represent expected and intentional behavior within dnsmasq's documented design, rather than security vulnerabilities.