UBUNTU-CVE-2018-18493

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Source
https://ubuntu.com/security/CVE-2018-18493
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-18493.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2018-18493
Upstream
Downstream
Related
Published
2018-12-11T00:00:00Z
Modified
2025-09-08T16:45:04Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

A buffer overflow can occur in the Skia library during buffer offset calculations with hardware accelerated canvas 2D actions due to the use of 32-bit calculations instead of 64-bit. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60.4, Firefox ESR < 60.4, and Firefox < 64.

References

Affected packages

Ubuntu:14.04:LTS

firefox

Package

Name
firefox
Purl
pkg:deb/ubuntu/firefox@64.0+build3-0ubuntu0.14.04.1?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
64.0+build3-0ubuntu0.14.04.1

Affected versions

24.*

24.0+build1-0ubuntu1

25.*

25.0+build3-0ubuntu0.13.10.1

28.*

28.0~b2+build1-0ubuntu2
28.0+build1-0ubuntu1
28.0+build2-0ubuntu1
28.0+build2-0ubuntu2

29.*

29.0+build1-0ubuntu0.14.04.2

30.*

30.0+build1-0ubuntu0.14.04.3

31.*

31.0+build1-0ubuntu0.14.04.1

32.*

32.0+build1-0ubuntu0.14.04.1
32.0.3+build1-0ubuntu0.14.04.1

33.*

33.0+build2-0ubuntu0.14.04.1

34.*

34.0+build2-0ubuntu0.14.04.1

35.*

35.0+build3-0ubuntu0.14.04.2
35.0.1+build1-0ubuntu0.14.04.1

36.*

36.0+build2-0ubuntu0.14.04.4
36.0.1+build2-0ubuntu0.14.04.1
36.0.4+build1-0ubuntu0.14.04.1

37.*

37.0+build2-0ubuntu0.14.04.1
37.0.1+build1-0ubuntu0.14.04.1
37.0.2+build1-0ubuntu0.14.04.1

38.*

38.0+build3-0ubuntu0.14.04.1

39.*

39.0+build5-0ubuntu0.14.04.1
39.0.3+build2-0ubuntu0.14.04.1

40.*

40.0+build4-0ubuntu0.14.04.1
40.0+build4-0ubuntu0.14.04.4
40.0.3+build1-0ubuntu0.14.04.1

41.*

41.0+build3-0ubuntu0.14.04.1
41.0.1+build2-0ubuntu0.14.04.1
41.0.2+build2-0ubuntu0.14.04.1

42.*

42.0+build2-0ubuntu0.14.04.1

43.*

43.0+build1-0ubuntu0.14.04.1
43.0.4+build3-0ubuntu0.14.04.1

44.*

44.0+build3-0ubuntu0.14.04.1
44.0.1+build2-0ubuntu0.14.04.1
44.0.2+build1-0ubuntu0.14.04.1

45.*

45.0+build2-0ubuntu0.14.04.1
45.0.1+build1-0ubuntu0.14.04.2
45.0.2+build1-0ubuntu0.14.04.1

46.*

46.0+build5-0ubuntu0.14.04.2
46.0.1+build1-0ubuntu0.14.04.3

47.*

47.0+build3-0ubuntu0.14.04.1

48.*

48.0+build2-0ubuntu0.14.04.1

49.*

49.0+build4-0ubuntu0.14.04.1
49.0.2+build2-0ubuntu0.14.04.1

50.*

50.0+build2-0ubuntu0.14.04.2
50.0.2+build1-0ubuntu0.14.04.1
50.1.0+build2-0ubuntu0.14.04.1

51.*

51.0.1+build2-0ubuntu0.14.04.1
51.0.1+build2-0ubuntu0.14.04.2

52.*

52.0+build2-0ubuntu0.14.04.1
52.0.1+build2-0ubuntu0.14.04.1
52.0.2+build1-0ubuntu0.14.04.1

53.*

53.0+build6-0ubuntu0.14.04.1
53.0.2+build1-0ubuntu0.14.04.2
53.0.3+build1-0ubuntu0.14.04.2

54.*

54.0+build3-0ubuntu0.14.04.1

55.*

55.0.1+build2-0ubuntu0.14.04.2
55.0.2+build1-0ubuntu0.14.04.1

56.*

56.0+build6-0ubuntu0.14.04.1
56.0+build6-0ubuntu0.14.04.2

57.*

57.0+build4-0ubuntu0.14.04.4
57.0+build4-0ubuntu0.14.04.5
57.0.1+build2-0ubuntu0.14.04.1
57.0.3+build1-0ubuntu0.14.04.1
57.0.4+build1-0ubuntu0.14.04.1

58.*

58.0+build6-0ubuntu0.14.04.1
58.0.1+build1-0ubuntu0.14.04.1
58.0.2+build1-0ubuntu0.14.04.1

59.*

59.0+build5-0ubuntu0.14.04.1
59.0.1+build1-0ubuntu0.14.04.1
59.0.2+build1-0ubuntu0.14.04.1
59.0.2+build1-0ubuntu0.14.04.4

60.*

60.0+build2-0ubuntu0.14.04.1
60.0.1+build2-0ubuntu0.14.04.1
60.0.2+build1-0ubuntu0.14.04.1

61.*

61.0+build3-0ubuntu0.14.04.2
61.0.1+build1-0ubuntu0.14.04.1

62.*

62.0+build2-0ubuntu0.14.04.3
62.0+build2-0ubuntu0.14.04.4
62.0+build2-0ubuntu0.14.04.5
62.0.3+build1-0ubuntu0.14.04.2

63.*

63.0+build2-0ubuntu0.14.04.2
63.0.3+build1-0ubuntu0.14.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "64.0+build3-0ubuntu0.14.04.1",
            "binary_name": "firefox"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.14.04.1",
            "binary_name": "firefox-dev"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.14.04.1",
            "binary_name": "firefox-globalmenu"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.14.04.1",
            "binary_name": "firefox-mozsymbols"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.14.04.1",
            "binary_name": "firefox-testsuite"
        }
    ]
}

thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:60.4.0+build2-0ubuntu0.14.04.1?arch=source&distro=trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:60.4.0+build2-0ubuntu0.14.04.1

Affected versions

1:24.*

1:24.0+build1-0ubuntu1
1:24.0+build1-0ubuntu2
1:24.1.1+build1-0ubuntu0.13.10.1
1:24.1.1+build1-0ubuntu1
1:24.2.0+build1-0ubuntu1
1:24.4.0+build1-0ubuntu1
1:24.5.0+build1-0ubuntu0.14.04.1
1:24.6.0+build1-0ubuntu0.14.04.1

1:31.*

1:31.0+build1-0ubuntu0.14.04.1
1:31.1.1+build1-0ubuntu0.14.04.1
1:31.1.2+build1-0ubuntu0.14.04.1
1:31.2.0+build2-0ubuntu0.14.04.1
1:31.3.0+build1-0ubuntu0.14.04.1
1:31.4.0+build1-0ubuntu0.14.04.1
1:31.5.0+build1-0ubuntu0.14.04.1
1:31.6.0+build1-0ubuntu0.14.04.1
1:31.7.0+build1-0ubuntu0.14.04.1
1:31.8.0+build1-0ubuntu0.14.04.1

1:38.*

1:38.2.0+build1-0ubuntu0.14.04.1
1:38.3.0+build1-0ubuntu0.14.04.1
1:38.4.0+build3-0ubuntu0.14.04.1
1:38.5.1+build2-0ubuntu0.14.04.1
1:38.6.0+build1-0ubuntu0.14.04.1
1:38.7.2+build1-0ubuntu0.14.04.1
1:38.8.0+build1-0ubuntu0.14.04.1

1:45.*

1:45.2.0+build1-0ubuntu0.14.04.3
1:45.3.0+build1-0ubuntu0.14.04.4
1:45.4.0+build1-0ubuntu0.14.04.1
1:45.5.1+build1-0ubuntu0.14.04.1
1:45.7.0+build1-0ubuntu0.14.04.1
1:45.8.0+build1-0ubuntu0.14.04.1

1:52.*

1:52.1.1+build1-0ubuntu0.14.04.1
1:52.2.1+build1-0ubuntu0.14.04.1
1:52.3.0+build1-0ubuntu0.14.04.1
1:52.4.0+build1-0ubuntu0.14.04.2
1:52.5.0+build1-0ubuntu0.14.04.1
1:52.6.0+build1-0ubuntu0.14.04.1
1:52.7.0+build1-0ubuntu0.14.04.1
1:52.8.0+build1-0ubuntu0.14.04.1
1:52.9.1+build3-0ubuntu0.14.04.1

1:60.*

1:60.2.1+build1-0ubuntu0.14.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "thunderbird"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "thunderbird-dev"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "thunderbird-globalmenu"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "thunderbird-gnome-support"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "thunderbird-mozsymbols"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "thunderbird-testsuite"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "xul-ext-calendar-timezones"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "xul-ext-gdata-provider"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.14.04.1",
            "binary_name": "xul-ext-lightning"
        }
    ]
}

Ubuntu:16.04:LTS

firefox

Package

Name
firefox
Purl
pkg:deb/ubuntu/firefox@64.0+build3-0ubuntu0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
64.0+build3-0ubuntu0.16.04.1

Affected versions

41.*

41.0.2+build2-0ubuntu1

42.*

42.0+build2-0ubuntu1

44.*

44.0+build3-0ubuntu2
44.0.1+build1-0ubuntu1
44.0.2+build1-0ubuntu1

45.*

45.0+build2-0ubuntu1
45.0.1+build1-0ubuntu1
45.0.2+build1-0ubuntu1

46.*

46.0+build5-0ubuntu0.16.04.2
46.0.1+build1-0ubuntu0.16.04.2

47.*

47.0+build3-0ubuntu0.16.04.1

48.*

48.0+build2-0ubuntu0.16.04.1

49.*

49.0+build4-0ubuntu0.16.04.1
49.0.2+build2-0ubuntu0.16.04.2

50.*

50.0+build2-0ubuntu0.16.04.2
50.0.2+build1-0ubuntu0.16.04.1
50.1.0+build2-0ubuntu0.16.04.1

51.*

51.0.1+build2-0ubuntu0.16.04.1
51.0.1+build2-0ubuntu0.16.04.2

52.*

52.0+build2-0ubuntu0.16.04.1
52.0.1+build2-0ubuntu0.16.04.1
52.0.2+build1-0ubuntu0.16.04.1

53.*

53.0+build6-0ubuntu0.16.04.1
53.0.2+build1-0ubuntu0.16.04.2
53.0.3+build1-0ubuntu0.16.04.2

54.*

54.0+build3-0ubuntu0.16.04.1

55.*

55.0.1+build2-0ubuntu0.16.04.2
55.0.2+build1-0ubuntu0.16.04.1

56.*

56.0+build6-0ubuntu0.16.04.1
56.0+build6-0ubuntu0.16.04.2

57.*

57.0+build4-0ubuntu0.16.04.5
57.0+build4-0ubuntu0.16.04.6
57.0.1+build2-0ubuntu0.16.04.1
57.0.3+build1-0ubuntu0.16.04.1
57.0.4+build1-0ubuntu0.16.04.1

58.*

58.0+build6-0ubuntu0.16.04.1
58.0.1+build1-0ubuntu0.16.04.1
58.0.2+build1-0ubuntu0.16.04.1

59.*

59.0+build5-0ubuntu0.16.04.1
59.0.1+build1-0ubuntu0.16.04.1
59.0.2+build1-0ubuntu0.16.04.1
59.0.2+build1-0ubuntu0.16.04.3

60.*

60.0+build2-0ubuntu0.16.04.1
60.0.1+build2-0ubuntu0.16.04.1
60.0.2+build1-0ubuntu0.16.04.1

61.*

61.0+build3-0ubuntu0.16.04.2
61.0.1+build1-0ubuntu0.16.04.1

62.*

62.0+build2-0ubuntu0.16.04.3
62.0+build2-0ubuntu0.16.04.4
62.0+build2-0ubuntu0.16.04.5
62.0.3+build1-0ubuntu0.16.04.2

63.*

63.0+build2-0ubuntu0.16.04.2
63.0.3+build1-0ubuntu0.16.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "64.0+build3-0ubuntu0.16.04.1",
            "binary_name": "firefox"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.16.04.1",
            "binary_name": "firefox-dev"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.16.04.1",
            "binary_name": "firefox-globalmenu"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.16.04.1",
            "binary_name": "firefox-mozsymbols"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.16.04.1",
            "binary_name": "firefox-testsuite"
        }
    ]
}

thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:60.4.0+build2-0ubuntu0.16.04.1?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:60.4.0+build2-0ubuntu0.16.04.1

Affected versions

1:38.*

1:38.3.0+build1-0ubuntu2
1:38.5.1+build2-0ubuntu1
1:38.6.0+build1-0ubuntu1
1:38.7.2+build1-0ubuntu0.16.04.1
1:38.8.0+build1-0ubuntu0.16.04.1

1:45.*

1:45.2.0+build1-0ubuntu0.16.04.1
1:45.3.0+build1-0ubuntu0.16.04.2
1:45.4.0+build1-0ubuntu0.16.04.1
1:45.5.1+build1-0ubuntu0.16.04.1
1:45.7.0+build1-0ubuntu0.16.04.1
1:45.8.0+build1-0ubuntu0.16.04.1

1:52.*

1:52.1.1+build1-0ubuntu0.16.04.1
1:52.2.1+build1-0ubuntu0.16.04.1
1:52.3.0+build1-0ubuntu0.16.04.1
1:52.4.0+build1-0ubuntu0.16.04.2
1:52.5.0+build1-0ubuntu0.16.04.1
1:52.6.0+build1-0ubuntu0.16.04.1
1:52.7.0+build1-0ubuntu0.16.04.1
1:52.8.0+build1-0ubuntu0.16.04.1
1:52.9.1+build3-0ubuntu0.16.04.1

1:60.*

1:60.2.1+build1-0ubuntu0.16.04.4

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "thunderbird"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-dev"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-globalmenu"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-gnome-support"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-mozsymbols"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "thunderbird-testsuite"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "xul-ext-calendar-timezones"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "xul-ext-gdata-provider"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.16.04.1",
            "binary_name": "xul-ext-lightning"
        }
    ]
}

Ubuntu:18.04:LTS

firefox

Package

Name
firefox
Purl
pkg:deb/ubuntu/firefox@64.0+build3-0ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
64.0+build3-0ubuntu0.18.04.1

Affected versions

56.*

56.0+build6-0ubuntu1

57.*

57.0.1+build2-0ubuntu1

59.*

59.0.1+build1-0ubuntu1
59.0.2+build1-0ubuntu1

60.*

60.0+build2-0ubuntu1
60.0.1+build2-0ubuntu0.18.04.1
60.0.2+build1-0ubuntu0.18.04.1

61.*

61.0+build3-0ubuntu0.18.04.1
61.0.1+build1-0ubuntu0.18.04.1

62.*

62.0+build2-0ubuntu0.18.04.3
62.0+build2-0ubuntu0.18.04.4
62.0+build2-0ubuntu0.18.04.5
62.0.3+build1-0ubuntu0.18.04.1

63.*

63.0+build2-0ubuntu0.18.04.2
63.0.3+build1-0ubuntu0.18.04.1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "64.0+build3-0ubuntu0.18.04.1",
            "binary_name": "firefox"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.18.04.1",
            "binary_name": "firefox-dev"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.18.04.1",
            "binary_name": "firefox-globalmenu"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.18.04.1",
            "binary_name": "firefox-mozsymbols"
        },
        {
            "binary_version": "64.0+build3-0ubuntu0.18.04.1",
            "binary_name": "firefox-testsuite"
        }
    ]
}

thunderbird

Package

Name
thunderbird
Purl
pkg:deb/ubuntu/thunderbird@1:60.4.0+build2-0ubuntu0.18.04.1?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1:60.4.0+build2-0ubuntu0.18.04.1

Affected versions

1:52.*

1:52.4.0+build1-0ubuntu2
1:52.6.0+build1-0ubuntu1
1:52.7.0+build1-0ubuntu1
1:52.8.0+build1-0ubuntu0.18.04.1
1:52.9.1+build3-0ubuntu0.18.04.1

1:60.*

1:60.2.1+build1-0ubuntu0.18.04.2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "thunderbird"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-dev"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-globalmenu"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-gnome-support"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-mozsymbols"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "thunderbird-testsuite"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "xul-ext-calendar-timezones"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "xul-ext-gdata-provider"
        },
        {
            "binary_version": "1:60.4.0+build2-0ubuntu0.18.04.1",
            "binary_name": "xul-ext-lightning"
        }
    ]
}