Multiple vulnerabilities in DjVuLibre
| Risk | Low |
| Patch available | NO |
| Number of vulnerabilities | 5 |
| CVE-ID | CVE-2019-15142 CVE-2019-15143 CVE-2019-15144 CVE-2019-15145 CVE-2019-18804 |
| CWE-ID | CWE-122 CWE-835 CWE-125 CWE-476 |
| Exploitation vector | Network |
| Public exploit | Public exploit code for vulnerability #5 is available. |
| Vulnerable software Subscribe |
DjVuLibre Client/Desktop applications / Multimedia software |
| Vendor | DjVu |
Security Bulletin
This security bulletin contains information about 5 vulnerabilities.
UPDATED: 21.11.2019
Added vulnerability #5.
1) Heap-based buffer overflow
EUVDB-ID: #VU21450
Risk: Low
CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-15142
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform denial of service attack.
The vulnerability exists due to a boundary error when processing DJVU files in DjVmDir.cpp in DjVuLibre. A remote attacker can create a specially crafted DJVU, trick the victim into opening it, trigger heap-based buffer overflow and crash the application using the affected library.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsDjVuLibre: 3.5.27
External linkshttp://sourceforge.net/p/djvu/bugs/296/
http://sourceforge.net/p/djvu/djvulibre-git/ci/970fb11a296b5bbdc5e8425851253d2c5913c45e/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Infinite loop
EUVDB-ID: #VU21451
Risk: Low
CVSSv3.1: 3.4 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-15143
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in bitmap reader component in DjVuLibre, related to libdjvu/DjVmDir.cpp and libdjvu/GBitmap.cpp files. A remote attacker can create a specially crafted file, pass it to the application using the affected library and perform denial of service conditions.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsDjVuLibre: 3.5.27
External linkshttp://lists.debian.org/debian-lts-announce/2019/08/msg00036.html
http://sourceforge.net/p/djvu/bugs/297/
http://sourceforge.net/p/djvu/djvulibre-git/ci/b1f4e1b2187d9e5010cd01ceccf20b4a11ce723f/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Infinite loop
EUVDB-ID: #VU21452
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-15144
CWE-ID:
CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop in the sorting functionality (aka GArrayTemplate::sort) within the libdjvu/GContainer.h in DjVuLibre. A remote attacker can consume excessive system resources with a specially crafted BMP file.
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsDjVuLibre: 3.5.27
External linkshttp://sourceforge.net/p/djvu/bugs/299/
http://sourceforge.net/p/djvu/djvulibre-git/ci/e15d51510048927f172f1bf1f27ede65907d940d/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
4) Out-of-bounds read
EUVDB-ID: #VU21453
Risk: Low
CVSSv3.1: 2.9 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-15145
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists due to a boundary condition in the JB2Dict::JB2Codec::get_direct_context in libdjvu/JB2Image.h within DjVuLibre due to a missing zero-bytes check in libdjvu/GBitmap.h. A remote attacker can create a specially crafted JB2 file, trick the victim into opening it, trigger out-of-bounds read error and crash the application.
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsDjVuLibre: 3.5.27
External linkshttp://sourceforge.net/p/djvu/bugs/298/
http://sourceforge.net/p/djvu/djvulibre-git/ci/9658b01431cd7ff6344d7787f855179e73fe81a7/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
5) NULL pointer dereference
EUVDB-ID: #VU22901
Risk: Low
CVSSv3.1: 3 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:P/RL:U/RC:C]
CVE-ID: CVE-2019-18804
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the function DJVU::filter_fv at IW44EncodeCodec.cpp. A remote attacker can perform a denial of service (DoS) attack.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsDjVuLibre: 3.5.27
External linkshttp://github.com/TeamSeri0us/pocs/blob/master/djvulibre/DJVU__filter_fv%40IW44EncodeCodec.cpp_499-43___SEGV_UNKNOW.md
http://lists.debian.org/debian-lts-announce/2019/11/msg00004.html
http://sourceforge.net/p/djvu/bugs/309/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
