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---
name: IRSSI-SA-2018-02
release_date: 2018-02-17
bugs:
  -
    cve: CVE-2018-7054
    cwe: CWE-416, CWE-825
    exploitable_by: remote
    affected_versions:
      from: 1.0.0
      to: [ 1.0.6, 1.1.0 ]
    fixed_version: [ 1.0.7, 1.1.1 ]
    credit: 'Joseph Bisch'
    description: Use after free when server is disconnected during netsplits. Incomplete fix of CVE-2017-7191.
  -
    cve: CVE-2018-7053
    cwe: CWE-416, CWE-691
    exploitable_by: server
    affected_versions:
      from: 0.8.18
      to: [ 1.0.6, 1.1.0 ]
    fixed_version: [ 1.0.7, 1.1.1 ]
    credit: 'Joseph Bisch'
    description: Use after free when SASL messages are received in unexpected order.
    mitigating_info: requires a non-conforming ircd
  -
    cve: CVE-2018-7050
    cwe: CWE-476, CWE-475
    exploitable_by: server
    affected_versions:
      to: [ 1.0.6, 1.1.0 ]
    fixed_version: [ 1.0.7, 1.1.1 ]
    credit: 'Joseph Bisch'
    description: Null pointer dereference when an "empty" nick has been observed by Irssi.
    mitigating_info: requires a broken ircd or control over the ircd
  -
    cve: CVE-2018-7052
    cwe: CWE-690
    exploitable_by: client
    affected_versions:
      to: [ 1.0.6, 1.1.0 ]
    fixed_version: [ 1.0.7, 1.1.1 ]
    credit: 'Joseph Bisch'
    description: When the number of windows exceed the available space, Irssi would crash due to Null pointer dereference.
    mitigating_info: depends on non-default configuration
  -
    cve: CVE-2018-7051
    cwe: CWE-126
    exploitable_by: client
    affected_versions:
      from: 0.8.7
      to: [ 1.0.6, 1.1.0 ]
    fixed_version: [ 1.0.7, 1.1.1 ]
    credit: Oss-Fuzz
    description: Certain nick names could result in out of bounds access when printing theme strings.
recommended_action: >
  Upgrade to the latest stable Irssi version. Irssi 1.0.7 and 1.1.1 are maintenance release in the
  1.0 and 1.1 series, without any new features.

  After installing the updated packages, one can issue the /upgrade
  command to load the new binary. TLS connections will require
  /reconnect.
---