Ubuntu update for GD Graphics Library
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2018-14553 CVE-2019-11038 |
| CWE-ID | CWE-476 CWE-125 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
libgd2 (Ubuntu package) Operating systems & Components / Operating system package or component |
| Vendor | Canonical Ltd. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) NULL pointer dereference
EUVDB-ID: #VU26344
Risk: Low
CVSSv3.1: 2.7 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2018-14553
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 within the gdImageClone() function in gd.c file in libgd. A remote attacker can trigger denial of service conditions via a specific function call sequence. Only affects PHP when linked with an external libgd (not bundled).
MitigationUpdate the affected packages.
- Ubuntu 19.10
- libgd-tools - 2.2.5-5.2ubuntu0.19.10.1
- libgd3 - 2.2.5-5.2ubuntu0.19.10.1
- Ubuntu 18.04 LTS
- libgd-tools - 2.2.5-4ubuntu0.4
- libgd3 - 2.2.5-4ubuntu0.4
- Ubuntu 16.04 LTS
- libgd-tools - 2.1.1-4ubuntu0.16.04.12
- libgd3 - 2.1.1-4ubuntu0.16.04.12
libgd2 (Ubuntu package): 2.1.1-4ubuntu0.16.04.1 - 2.2.5-4ubuntu0.3
External linkshttp://bugzilla.redhat.com/show_bug.cgi?id=1599032
http://github.com/libgd/libgd/commit/a93eac0e843148dc2d631c3ba80af17e9c8c860f
http://github.com/libgd/libgd/pull/580
http://lists.debian.org/debian-lts-announce/2020/02/msg00014.html
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) Out-of-bounds read
EUVDB-ID: #VU21274
Risk: Medium
CVSSv3.1: 4 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N/E:U/RL:U/RC:C]
CVE-ID: CVE-2019-11038
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to a boundary condition in the gdImageCreateFromXbm() function in the GD Graphics Library (aka LibGD). A remote attacker can create a specially crafted image, pass it to the affected application, trigger out-of-bounds read error and read contents of memory on the system.
Mitigation
Update the affected packages.
- Ubuntu 19.10
- libgd-tools - 2.2.5-5.2ubuntu0.19.10.1
- libgd3 - 2.2.5-5.2ubuntu0.19.10.1
- Ubuntu 18.04 LTS
- libgd-tools - 2.2.5-4ubuntu0.4
- libgd3 - 2.2.5-4ubuntu0.4
- Ubuntu 16.04 LTS
- libgd-tools - 2.1.1-4ubuntu0.16.04.12
- libgd3 - 2.1.1-4ubuntu0.16.04.12
libgd2 (Ubuntu package): 2.1.1-4ubuntu0.16.04.1 - 2.2.5-4ubuntu0.3
External linkshttp://access.redhat.com/errata/RHSA-2019:2519
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=929821
http://bugs.php.net/bug.php?id=77973
http://bugzilla.redhat.com/show_bug.cgi?id=1724149
http://bugzilla.redhat.com/show_bug.cgi?id=1724432
http://bugzilla.suse.com/show_bug.cgi?id=1140118
http://bugzilla.suse.com/show_bug.cgi?id=1140120
http://github.com/libgd/libgd/issues/501
http://lists.debian.org/debian-lts-announce/2019/06/msg00003.html
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PKSSWFR2WPMUOIB5EN5ZM252NNEPYUTG/
http://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WAZBVK6XNYEIN7RDQXESSD63QHXPLKWL/
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.
