Canonical Ubuntu Linux vulnerabilities

CVE-2018-6559 [LOW] CWE-200 CVE-2018-6559: The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names o The Linux kernel, as used in Ubuntu 18.04 LTS and Ubuntu 18.10, allows local users to obtain names of files in which they would not normally be able to access via an overlayfs mount inside of a user namespace.

CVE-2018-14665 [MEDIUM] CWE-863 CVE-2018-14665: A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and A flaw was found in xorg-x11-server before 1.20.3. An incorrect permission check for -modulepath and -logfile options when starting Xorg. X server allows unprivileged users with the ability to log in to the system via physical console to escalate their privileges and run arbitrary code under root privileges.

CVE-2018-18584 [MEDIUM] CWE-787 CVE-2018-18584: In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer i In mspack/cab.h in libmspack before 0.8alpha and cabextract before 1.8, the CAB block input buffer is one byte too small for the maximal Quantum block, leading to an out-of-bounds write.

CVE-2018-18585 [MEDIUM] CWE-476 CVE-2018-18585: chmd_read_headers in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has '\0' as chmd_read_headers in mspack/chmd.c in libmspack before 0.8alpha accepts a filename that has '\0' as its first or second character (such as the "/\0" name).

CVE-2018-18557 [HIGH] CWE-787 CVE-2018-18557: LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, LibTIFF 3.9.3, 3.9.4, 3.9.5, 3.9.6, 3.9.7, 4.0.0alpha4, 4.0.0alpha5, 4.0.0alpha6, 4.0.0beta7, 4.0.0, 4.0.1, 4.0.2, 4.0.3, 4.0.4, 4.0.4beta, 4.0.5, 4.0.6, 4.0.7, 4.0.8 and 4.0.9 (with JBIG enabled) decodes arbitrarily-sized JBIG into a buffer, ignoring the buffer size, which leads to a tif_jbig.c JBIGDecode out-of-bounds write.

CVE-2018-18284 [HIGH] CVE-2018-18284: Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via v Artifex Ghostscript 9.25 and earlier allows attackers to bypass a sandbox protection mechanism via vectors involving the 1Policy operator.

CVE-2018-18521 [MEDIUM] CWE-369 CVE-2018-18521: Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allo Divide-by-zero vulnerabilities in the function arlib_add_symbols() in arlib.c in elfutils 0.174 allow remote attackers to cause a denial of service (application crash) with a crafted ELF file, as demonstrated by eu-ranlib, because a zero sh_entsize is mishandled.

CVE-2018-18520 [MEDIUM] CWE-119 CVE-2018-18520: An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v An Invalid Memory Address Dereference exists in the function elf_end in libelf in elfutils through v0.174. Although eu-size is intended to support ar files inside ar files, handle_ar in size.c closes the outer ar file before handling all inner entries. The vulnerability allows attackers to cause a denial of service (application crash) with a crafted

CVE-2018-12387 [CRITICAL] CWE-20 CVE-2018-12387: A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple argumen A vulnerability where the JavaScript JIT compiler inlines Array.prototype.push with multiple arguments that results in the stack pointer being off by 8 bytes after a bailout. This leaks a memory address to the calling function which can be used as part of an exploit inside the sandboxed content process. This vulnerability affects Firefox ESR < 60.2

CVE-2018-12378 [CRITICAL] CWE-416 CVE-2018-12378: A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by Ja A use-after-free vulnerability can occur when an IndexedDB index is deleted while still in use by JavaScript code that is providing payload values to be stored. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

CVE-2018-5186 [CRITICAL] CWE-119 CVE-2018-5186: Memory safety bugs present in Firefox 60. Some of these bugs showed evidence of memory corruption an Memory safety bugs present in Firefox 60. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 61.

CVE-2018-12377 [CRITICAL] CWE-416 CVE-2018-12377: A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstan A use-after-free vulnerability can occur when refresh driver timers are refreshed in some circumstances during shutdown when the timer is deleted while still in use. This results in a potentially exploitable crash. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

CVE-2018-12376 [CRITICAL] CWE-119 CVE-2018-12376: Memory safety bugs present in Firefox 61 and Firefox ESR 60.1. Some of these bugs showed evidence of Memory safety bugs present in Firefox 61 and Firefox ESR 60.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 62, Firefox ESR < 60.2, and Thunderbird < 60.2.1.

CVE-2018-5188 [CRITICAL] CWE-119 CVE-2018-5188: Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. Some of these bugs s Memory safety bugs present in Firefox 60, Firefox ESR 60, and Firefox ESR 52.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefo

CVE-2018-12369 [CRITICAL] CWE-863 CVE-2018-12369: WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. WebExtensions bundled with embedded experiments were not correctly checked for proper authorization. This allowed a malicious WebExtension to gain full browser permissions. This vulnerability affects Firefox ESR < 60.1 and Firefox < 61.

CVE-2018-5156 [CRITICAL] CWE-20 CVE-2018-5156: A vulnerability can occur when capturing a media stream when the media source type is changed as the A vulnerability can occur when capturing a media stream when the media source type is changed as the capture is occurring. This can result in stream data being cast to the wrong type causing a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

CVE-2018-5187 [CRITICAL] CWE-119 CVE-2018-5187: Memory safety bugs present in Firefox 60 and Firefox ESR 60. Some of these bugs showed evidence of m Memory safety bugs present in Firefox 60 and Firefox ESR 60. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61.

CVE-2018-12370 [HIGH] CWE-352 CVE-2018-12370: In Reader View SameSite cookie protections are not checked on exiting. This allows for a payload to In Reader View SameSite cookie protections are not checked on exiting. This allows for a payload to be triggered when Reader View is exited if loaded by a malicious site while Reader mode is active, bypassing CSRF protections. This vulnerability affects Firefox < 61.

CVE-2018-12375 [HIGH] CWE-119 CVE-2018-12375: Memory safety bugs present in Firefox 61. Some of these bugs showed evidence of memory corruption an Memory safety bugs present in Firefox 61. Some of these bugs showed evidence of memory corruption and we presume that with enough effort that some of these could be exploited to run arbitrary code. This vulnerability affects Firefox < 62.

CVE-2018-12361 [HIGH] CWE-190 CVE-2018-12361: An integer overflow can occur in the SwizzleData code while calculating buffer sizes. The overflowed An integer overflow can occur in the SwizzleData code while calculating buffer sizes. The overflowed value is used for subsequent graphics computations when their inputs are not sanitized which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Firefox ESR < 60.1, and Firefox < 61.