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CVE-2018-9860

Published: 12 April 2018

An issue was discovered in Botan 1.11.32 through 2.x before 2.6.0. An off-by-one error when processing malformed TLS-CBC ciphertext could cause the receiving side to include in the HMAC computation exactly 64K bytes of data following the record buffer, aka an over-read. The MAC comparison will subsequently fail and the connection will be closed. This could be used for denial of service. No information leak occurs.

Priority

Medium

CVSS 3 base score: 7.5

Status

Package Release Status
botan
Launchpad, Ubuntu, Debian
artful Does not exist

bionic Needed

cosmic Ignored
(reached end-of-life)
disco Not vulnerable
(2.9.0-2)
eoan Not vulnerable
(2.9.0-2)
focal Not vulnerable
(2.9.0-2)
groovy Not vulnerable
(2.9.0-2)
hirsute Not vulnerable
(2.9.0-2)
impish Not vulnerable
(2.9.0-2)
jammy Not vulnerable
(2.9.0-2)
precise Does not exist

trusty Does not exist

upstream
Released (2.4.0-6)
xenial Does not exist

botan1.10
Launchpad, Ubuntu, Debian
artful Ignored
(reached end-of-life)
bionic Not vulnerable
(code not present)
cosmic Ignored
(reached end-of-life)
disco Does not exist

eoan Does not exist

focal Does not exist

groovy Does not exist

hirsute Does not exist

impish Does not exist

jammy Does not exist

precise Does not exist

trusty Does not exist
(trusty was needs-triage)
upstream Not vulnerable
(code not present)
xenial Not vulnerable
(code not present)