Medium: curl

Issue Overview: command line arguments lead to local file overwrite CVE-2020-8177 Affected Packages: curl Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories. Issue Correction: Run yum update...

Important: unbound

Issue Overview: An incomplete fix for CVE-2020-12662 was shipped for Unbound in Red Hat Enterprise Linux 7, as part of erratum RHSA-2020:2414. Vulnerable versions of Unbound could still amplify an incoming query into a large number of queries directed to a target, even with a lower amplification...

Medium: microcode_ctl

Issue Overview: A new domain bypass transient execution attack known as Special Register Buffer Data Sampling SRBDS has been found. This flaw allows data values from special internal registers to be leaked by an attacker able to execute code on any core of the CPU. An unprivileged, local attacker...

Medium: rsyslog

Issue Overview: An issue was discovered in Rsyslog v8.1908.0. contrib/pmaixforwardedfrom/pmaixforwardedfrom.c has a heap overflow in the parser for AIX log messages. The parser tries to locate a log message delimiter in this case, a space or a colon but fails to account for strings that do not...

Medium: libexif

Issue Overview: An issue was discovered in libexif before 0.6.22. Several buffer over-reads in EXIF MakerNote handling could lead to information disclosure and crashes. This is different from CVE-2020-0093. CVE-2020-13112 Affected Packages: libexif Note: This advisory is applicable to Amazon Linu...

Low: python-urllib3

Issue Overview: No CVE associated with this advisory Affected Packages: python-urllib3 Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories. Issue Correction: Run yum update python-urllib3 or...

Important: tomcat

Issue Overview: When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a an attacker is able to control the contents and name of a file on the server; and b the server is configured to use the PersistenceManager with a FileStore; and ...

Medium: json-c

Issue Overview: json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbufmemappend. CVE-2020-12762 Affected Packages: json-c Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit this FAQ section for the...

Important: nghttp2

Issue Overview: In nghttp2 before version 1.41.0, the overly large HTTP/2 SETTINGS frame payload causes denial of service. The proof of concept attack involves a malicious client constructing a SETTINGS frame with a length of 14,400 bytes 2400 individual settings entries over and over again. The...

Important: squid

Issue Overview: An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter a short integer. Remote code...

Medium: bind

Issue Overview: "managed-keys" is a feature which allows a BIND resolver to automatically maintain the keys used by trust anchors which operators configure for use in DNSSEC validation. Due to an error in the managed-keys feature it is possible for a BIND server which uses managed-keys to exit du...

Medium: lftp

Issue Overview: It has been discovered that lftp up to and including version 4.8.3 does not properly sanitize remote file names, leading to a loss of integrity on the local system when reverse mirroring is used. A remote attacker may trick a user to use reverse mirroring on an attacker controlled...

Important: telnet

Issue Overview: utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions. CVE-2020-10188 Affected Packages: telnet Issue Correction: Run yum upda...

Medium: bash

Issue Overview: rbash in Bash before 4.4-beta2 did not prevent the shell user from modifying BASHCMDS, thus allowing the user to execute any command with the permissions of the shell. CVE-2019-9924 Affected Packages: bash Issue Correction: Run yum update bash or yum update --advisory ALAS-2020-13...

Important: kernel

Issue Overview: A NULL pointer dereference flaw was found in the Linux kernel's SELinux subsystem in versions before 5.7. This flaw occurs while importing the Commercial IP Security Option CIPSO protocol's category bitmap into the SELinux extensible bitmap via the' ebitmapnetlblimport' routine...

Medium: json-c

Issue Overview: json-c through 0.14 has an integer overflow and out-of-bounds write via a large JSON file, as demonstrated by printbufmemappend. CVE-2020-12762 Affected Packages: json-c Issue Correction: Run yum update json-c or yum update --advisory ALAS-2020-1381 to update your system. New...

Medium: rubygem-rake

Issue Overview: There is an OS command injection vulnerability in Ruby Rake 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character |. CVE-2020-8130 Affected Packages: rubygem-rake Issue Correction: Run yum update rubygem-rake or yum update --advisory ALAS-2020-1384...

Medium: texlive

Issue Overview: An issue was discovered in t1checkunusualcharstring functions in writet1.c files in TeX Live before 2018-09-21. A buffer overflow in the handling of Type 1 fonts allows arbitrary code execution when a malicious font is loaded by one of the vulnerable tools: pdflatex, pdftex, dvips...

Important: squid

Issue Overview: An issue was discovered in Squid before 5.0.2. A remote attacker can replay a sniffed Digest Authentication nonce to gain access to resources that are otherwise forbidden. This occurs because the attacker can overflow the nonce reference counter a short integer. Remote code...

Medium: rubygem24-rake

Issue Overview: There is an OS command injection vulnerability in Ruby Rake 12.3.3 in Rake::FileList when supplying a filename that begins with the pipe character |. CVE-2020-8130 Affected Packages: rubygem24-rake Issue Correction: Run yum update rubygem24-rake or yum update --advisory...

Important: exim

Issue Overview: Exim through 4.93 has an out-of-bounds read in the SPA authenticator that could result in SPA/NTLM authentication bypass in auths/spa.c and auths/auth-spa.c. CVE-2020-12783 Affected Packages: exim Issue Correction: Run yum update exim or yum update --advisory ALAS-2020-1380 to...

Medium: php-pecl-imagick

Issue Overview: An issue was discovered in ImageMagick 7.0.7. A memory leak vulnerability was found in the function WriteGIFImage in coders/gif.c, which allow remote attackers to cause a denial of service via a crafted file. CVE-2017-18254 An issue was discovered in ImageMagick 7.0.7. The...

Important: tomcat7

Issue Overview: When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a an attacker is able to control the contents and name of a file on the server; and b the server is configured to use the PersistenceManager with a FileStore; and ...

Important: tomcat8

Issue Overview: When using Apache Tomcat versions 10.0.0-M1 to 10.0.0-M4, 9.0.0.M1 to 9.0.34, 8.5.0 to 8.5.54 and 7.0.0 to 7.0.103 if a an attacker is able to control the contents and name of a file on the server; and b the server is configured to use the PersistenceManager with a FileStore; and ...

Important: kernel-livepatch-4.14.173-137.228

Issue Overview: A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending...

Important: kernel-livepatch-4.14.177-139.254

Issue Overview: A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending...

Important: kernel-livepatch-4.14.173-137.229

Issue Overview: A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending...

Important: kernel-livepatch-4.14.177-139.253

Issue Overview: A flaw was found in the Linux kernel's implementation of some networking protocols in IPsec, such as VXLAN and GENEVE tunnels over IPv6. When an encrypted tunnel is created between two hosts, the kernel isn't correctly routing tunneled data over the encrypted link; rather sending...

Important: kernel-livepatch-4.14.177-139.253

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call. CVE-2019-19319 Affected...

Important: kernel-livepatch-4.14.177-139.254

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call. CVE-2019-19319 Affected...

Important: kernel-livepatch-4.14.173-137.229

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call. CVE-2019-19319 Affected...

Medium: mod_auth_mellon

Issue Overview: modauthmellon through 0.14.2 has an Open Redirect via the login?ReturnTo= substring, as demonstrated by omitting the // after http: in the target URL. CVE-2019-13038 Affected Packages: modauthmellon Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository. Visit thi...

Low: polkit

Issue Overview: A flaw was found in polkit before version 0.116. The implementation of the polkitbackendinteractiveauthoritycheckauthorization function in polkitd allows to test for authentication and trigger authentication of unrelated processes owned by other users. This may result in a local D...

Important: zsh

Issue Overview: In Zsh before 5.8, attackers able to execute commands can regain privileges dropped by the --no-PRIVILEGED option. Zsh fails to overwrite the saved uid, so the original privileges can be restored by executing MODULEPATH=/dir/with/module zmodload with a module that calls setuid...

Medium: libsndfile

Issue Overview: A stack-based buffer overflow in psfmemset in common.c in libsndfile 1.0.28 allows remote attackers to cause a denial of service application crash or possibly have unspecified other impact via a crafted audio file. The vulnerability can be triggered by the executable...

Important: fribidi

Issue Overview: A buffer overflow in the fribidigetparembeddinglevelsex function in lib/fribidi-bidi.c of GNU FriBidi through 1.0.7 allows an attacker to cause a denial of service or possibly execute arbitrary code by delivering crafted text content to a user, when this content is then rendered b...

Important: kernel

Issue Overview: A flaw was found in the Linux kernel's implementation of the BFQ IO scheduler. This flaw allows a local user able to groom system memory to cause kernel memory corruption and possible privilege escalation by abusing a race condition in the IO scheduler. CVE-2020-12657 A flaw was...

Medium: wireshark

Issue Overview: In Wireshark 2.6.0 to 2.6.2, 2.4.0 to 2.4.8, and 2.2.0 to 2.2.16, the Radiotap dissector could crash. This was addressed in epan/dissectors/packet-ieee80211-radiotap-iter.c by validating iterator operations. CVE-2018-16057 In Wireshark 2.6.0 to 2.6.4 and 2.4.0 to 2.4.10, the MMSE...

Important: kernel-livepatch-4.14.173-137.228

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call. CVE-2019-19319 Affected...

Medium: xorg-x11-server

Issue Overview: It was discovered that libX11 does not properly validate input coming from the server, causing XListExtensions and XGetFontPath functions to produce an invalid list of elements that in turn make XFreeExtensionsList and XFreeFontPath access invalid memory. An attacker who can eithe...

Important: kernel

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call.CVE-2019-19319 In the Linux...

Important: kernel

Issue Overview: In the Linux kernel 5.0.21, a setxattr operation, after a mount of a crafted ext4 image, can cause a slab-out-of-bounds write access because of an ext4xattrsetentry use-after-free in fs/ext4/xattr.c when a large oldsize value is used in a memset call.CVE-2019-19319 In the Linux...

Important: kernel-livepatch-4.14.173-137.228

Issue Overview: An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfqidleslicetimerbody.CVE-2020-12657 Affected Packages: kernel-livepatch-4.14.173-137.228 Issue Correction: Please ensure you have live patching enabled. Run yum...

Important: bind

Issue Overview: A malicious actor who intentionally exploits this lack of effective limitation on the number of fetches performed when processing referrals can, through the use of specially crafted referrals, cause a recursing server to issue a very large number of fetches in an attempt to proces...

Low: httpd24

Issue Overview: In Apache HTTP Server 2.4.0 to 2.4.41, redirects configured with modrewrite that were intended to be self-referential might be fooled by encoded newlines and redirect instead to an an unexpected URL within the request URL.CVE-2020-1927 In Apache HTTP Server 2.4.0 to 2.4.41,...

Important: kernel-livepatch-4.14.171-136.231

Issue Overview: An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfqidleslicetimerbody.CVE-2020-12657 Affected Packages: kernel-livepatch-4.14.171-136.231 Issue Correction: Please ensure you have live patching enabled. Run yum...

Important: kernel-livepatch-4.14.173-137.229

Issue Overview: An issue was discovered in the Linux kernel before 5.6.5. There is a use-after-free in block/bfq-iosched.c related to bfqidleslicetimerbody.CVE-2020-12657 Affected Packages: kernel-livepatch-4.14.173-137.229 Issue Correction: Please ensure you have live patching enabled. Run yum...

Important: docker

Issue Overview: An issue was discovered in Docker Engine before 19.03.11. An attacker in a container, with the CAPNETRAW capability, can craft IPv6 router advertisements, and consequently spoof external IPv6 hosts, obtain sensitive information, or cause a denial of service.CVE-2020-13401 Affected...

Important: squid

Issue Overview: An issue was discovered in Squid through 4.7. When handling the tag esi:when when ESI is enabled, Squid calls ESIExpression::Evaluate. This function uses a fixed stack buffer to hold the expression while it's being evaluated. When processing the expression, it could either evaluat...

Medium: python

Issue Overview: http.cookiejar.DefaultPolicy.domainreturnok in Lib/http/cookiejar.py in Python before 3.7.3 does not correctly validate the domain: it can be tricked into sending existing cookies to the wrong server. An attacker may abuse this flaw by using a server with a hostname that has anoth...