mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response that is larger than 512 bytes and uses a crafted compression pointer in the answer NAME field. ipinfo_lookup() function uses the length of the response as the end-of-message boundary for dn_expand() function. The result is a reliable crash.
This issue exists in the mtr through version 0.96 and it was fixed in commit 48e1794414d338ce47abc0f27c25ade8788af9c3.
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Affected Vendors & Products
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History
Fri, 10 Jul 2026 14:30:00 +0000
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| Description | mtr is vulnerable to Out-of-bound read vulnerability in ipinfo_lookup() function. An attacker who can influence the TXT response used for AS lookups can trigger this bug by returning a DNS response that is larger than 512 bytes and uses a crafted compression pointer in the answer NAME field. ipinfo_lookup() function uses the length of the response as the end-of-message boundary for dn_expand() function. The result is a reliable crash. This issue exists in the mtr through version 0.96 and it was fixed in commit 48e1794414d338ce47abc0f27c25ade8788af9c3. | |
| Title | Out-of-bound read in mtr | |
| Weaknesses | CWE-125 | |
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cvssV4_0
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Status: PUBLISHED
Assigner: CERT-PL
Published:
Updated: 2026-07-10T13:14:54.068Z
Reserved: 2026-07-02T08:57:32.810Z
Link: CVE-2026-14461
Updated: 2026-07-10T13:14:50.409Z
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OpenCVE Enrichment
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