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Vulnerabilities / CVE-2017-12894

critical

CVE-2017-12894

tcpdump: Buffer over-read in addrtoname.c:lookup_bytestring()

Published Modified CWE 125
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Red Hat6.5CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Photon OS (high), Red Hat (low), Ubuntu (low).

Description

Several protocol parsers in tcpdump before 4.9.2 could cause a buffer over-read in addrtoname.c:lookup_bytestring().

Affected packages and fixed versions

SourcePackageFixed in
debian 11tcpdump4.9.2-1
debian 12tcpdump4.9.2-1
debian 13tcpdump4.9.2-1
debian 14tcpdump4.9.2-1
debian 7tcpdump4.9.2-1~deb7u1
debian 8tcpdump4.9.2-1~deb8u1
debian 9tcpdump4.9.2-1~deb9u1
echotcpdump4.9.2-1
Photon OS 1.0tcpdump4.9.2-1.ph1
Photon OS 2.0tcpdump4.9.2-1.ph2
Red Hattcpdumpno fix listed
seal Red Hat 6seal-tcpdump, tcpdump14:4.0.0-11.20090921gitdf3cb4.2.el6+sp999
Show all 18 entries from 17 sources
SourcePackageFixed in
debian 11tcpdump4.9.2-1
debian 12tcpdump4.9.2-1
debian 13tcpdump4.9.2-1
debian 14tcpdump4.9.2-1
debian 7tcpdump4.9.2-1~deb7u1
debian 8tcpdump4.9.2-1~deb8u1
debian 9tcpdump4.9.2-1~deb9u1
echotcpdump4.9.2-1
Photon OS 1.0tcpdump4.9.2-1.ph1
Photon OS 2.0tcpdump4.9.2-1.ph2
Red Hattcpdumpno fix listed
seal Red Hat 6seal-tcpdump14:4.0.0-11.20090921gitdf3cb4.2.el6+sp999
seal Red Hat 6tcpdump14:4.0.0-11.20090921gitdf3cb4.2.el6+sp999
ubuntu 14.04tcpdump4.9.2-0ubuntu0.14.04.1
ubuntu 14.04-ESMtcpdump4.9.2-0ubuntu0.14.04.1
ubuntu 16.04tcpdump4.9.2-0ubuntu0.16.04.1
ubuntu 16.04-ESMtcpdump4.9.2-0ubuntu0.16.04.1
ubuntu 17.04tcpdump4.9.2-0ubuntu0.17.04.2

References

All 12 references

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.