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CVE-2018-11740

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6...

8.1 HighFix available

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
High
Integrity
None
Availability
High

Exploit likelihood

1.28%Up 0.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

NVD Score used 8.1

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Record
CVE-2018-11740
CVSS 3.0
8.1 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
CVSS 2.0
5.8 MediumAV:N/AC:M/Au:N/C:P/I:N/A:P
Weakness
CWE-125
Updated
2026-11-02
CVE List No score

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Record
CVE-2018-11740
Updated
2026-11-02
EUVDEUVD-2018-3759 No score

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Record
EUVD-2018-3759
Updated
2026-11-03
GitHub AdvisoriesGHSA-r7rp-7j3w-63cw 8.1

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6...

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Record
GHSA-r7rp-7j3w-63cw
CVSS 3.0
8.1 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Weakness
CWE-125
Updated
2026-11-02
OSV 8.1

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Record
CVE-2018-11740
CVSS 3.0
8.1 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVDEBIAN-CVE-2018-11740 8.1

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Record
DEBIAN-CVE-2018-11740
CVSS 3.0
8.1 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVUBUNTU-CVE-2018-11740 8.1

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack.

Record
UBUNTU-CVE-2018-11740
CVSS 3.0
8.1 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H
Updated
2026-11-02
OSVMGASA-2018-0368 No score

Updated sleuthkit packages fix security vulnerabilities

Updated sleuthkit packages fix security vulnerabilities:

In The Sleuth Kit (TSK) 4.4.2, opening a crafted ISO 9660 image triggers an out-of-bounds read in iso9660_proc_dir() in tsk/fs/iso9660_dent.c in libtskfs.a, as demonstrated by fls (CVE-2017-13755).

In The Sleuth Kit (TSK) 4.4.2, opening a crafted disk image triggers infinite recursion in dos_load_ext_table() in tsk/vs/dos.c in libtskvs.a, as demonstrated by mmls (CVE-2017-13756).

In The Sleuth Kit (TSK) 4.4.2, fls hangs on a corrupt exfat image in tsk_img_read() in tsk/img/img_io.c in libtskimg.a (CVE-2017-13760).

An issue was discovered in libtskfs.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function ntfs_fix_idxrec in tsk/fs/ntfs_dent.cpp which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service (CVE-2018-11737).

An issue was discovered in libtskfs.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function ntfs_make_data_run in tsk/fs/ntfs.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack (CVE-2018-11738).

An issue was discovered in libtskimg.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function raw_read in tsk/img/raw.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack (CVE-2018-11739).

An issue was discovered in libtskbase.a in The Sleuth Kit (TSK) from release 4.0.2 through to 4.6.1. An out-of-bounds read of a memory region was found in the function tsk_UTF16toUTF8 in tsk/base/tsk_unicode.c which could be leveraged by an attacker to disclose information or manipulated to read from unmapped memory causing a denial of service attack (CVE-2018-11740).

Record
MGASA-2018-0368
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
sleuthkit
Debian:12
All versions, plus listed versions
4.11.1+dfsg-14.12.0+dfsg-14.12.1+dfsg-14.12.1+dfsg-1.14.12.1+dfsg-1.1~exp14.12.1+dfsg-24.12.1+dfsg-34.14.0+dfsg-1
None known
sleuthkit
Debian:13
All versions, plus listed versions
4.12.1+dfsg-34.14.0+dfsg-1
None known
sleuthkit
Debian:14
All versions, plus listed versions
4.12.1+dfsg-34.14.0+dfsg-1
None known
sleuthkit
Mageia:6
before 4.6.2-2.mga6
4.6.2-2.mga6
sleuthkit
Ubuntu:Pro:14.04:LTS
All versions, plus listed versions
3.2.3-2ubuntu13.2.3-2ubuntu23.2.3-2.13.2.3-2.23.2.3-2.2ubuntu0.1~esm1
None known
sleuthkit
Ubuntu:Pro:16.04:LTS
All versions, plus listed versions
4.1.3-11ubuntu24.1.3-12ubuntu14.2.0-34.2.0-3ubuntu0.1~esm1
None known
sleuthkit
Ubuntu:18.04:LTS
All versions, plus listed versions
4.4.2-14.4.2-3
None known
sleuthkit
Ubuntu:20.04:LTS
All versions, plus listed versions
4.6.5-14.6.7-14.6.7-1build1
None known
sleuthkit
Ubuntu:22.04:LTS
All versions, plus listed versions
4.10.1+dfsg-14.11.0+dfsg-14.11.1+dfsg-1
None known
sleuthkit
Ubuntu:24.04:LTS
All versions, plus listed versions
4.12.0+dfsg-14.12.1+dfsg-14.12.1+dfsg-1.1ubuntu14.12.1+dfsg-1.1ubuntu2
None known
sleuthkit
Ubuntu:25.10
All versions, plus listed versions
4.12.1+dfsg-1.1ubuntu24.12.1+dfsg-3
None known
sleuthkit
Ubuntu:26.10
All versions, plus listed versions
4.12.1+dfsg-3build14.14.0+dfsg-1
None known
sleuthkit
Ubuntu:26.04:LTS
All versions, plus listed versions
4.12.1+dfsg-34.12.1+dfsg-3build1
None known

History

History
RecordedChangedSources
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-11740 is a high vulnerability (CVSS 8.1) in Sleuthkit The Sleuth Kit, published June 5, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.28%, the 70th percentile. Fixed in sleuthkit 4.6.2-2.mga6.

References

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