Risk | Low |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2017-13720 CVE-2017-13722 |
CWE-ID | CWE-125 |
Exploitation vector | Local |
Public exploit | N/A |
Vulnerable software |
Gentoo Linux Operating systems & Components / Operating system |
Vendor | Gentoo |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU38075
Risk: Low
CVSSv4.0: 4.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2017-13720
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local authenticated user to #BASIC_IMPACT#.
In the PatternMatch function in fontfile/fontdir.c in libXfont through 1.5.2 and 2.x before 2.0.2, an attacker with access to an X connection can cause a buffer over-read during pattern matching of fonts, leading to information disclosure or a crash (denial of service). This occurs because '' characters are incorrectly skipped in situations involving ? characters.
MitigationUpdate the affected packages.
x11-libs/libXfont2 to version: 2.0.2
x11-libs/libXfont to version: 1.5.3
Gentoo Linux: All versions
CPE2.3 External linkshttps://security.gentoo.org/
https://security.gentoo.org/glsa/201711-08
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
EUVDB-ID: #VU38076
Risk: Low
CVSSv4.0: 4.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2017-13722
CWE-ID:
CWE-125 - Out-of-bounds read
Exploit availability: No
DescriptionThe vulnerability allows a local authenticated user to #BASIC_IMPACT#.
In the pcfGetProperties function in bitmap/pcfread.c in libXfont through 1.5.2 and 2.x before 2.0.2, a missing boundary check (for PCF files) could be used by local attackers authenticated to an Xserver for a buffer over-read, for information disclosure or a crash of the X server.
MitigationUpdate the affected packages.
x11-libs/libXfont2 to version: 2.0.2
x11-libs/libXfont to version: 1.5.3
Gentoo Linux: All versions
CPE2.3 External linkshttps://security.gentoo.org/
https://security.gentoo.org/glsa/201711-08
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.