Ausführen beliebiger Kommandos in ksh
ID: | RHSA-2020:0568-01 |
Distribution: | Red Hat |
Plattformen: | Red Hat Enterprise Linux |
Datum: | Mo, 24. Februar 2020, 10:41 |
Referenzen: | https://access.redhat.com/security/cve/CVE-2019-14868 |
Applikationen: | ksh |
Originalnachricht |
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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: ksh security update Advisory ID: RHSA-2020:0568-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:0568 Issue date: 2020-02-24 CVE Names: CVE-2019-14868 ===================================================================== 1. Summary: An update for ksh is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Client (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 3. Description: KornShell (ksh) is a Unix shell developed by AT&T Bell Laboratories, which is backward-compatible with the Bourne shell (sh) and includes many features of the C shell. The most recent version is KSH-93. KornShell complies with the POSIX.2 standard (IEEE Std 1003.2-1992). Security Fix(es): * ksh: certain environment variables interpreted as arithmetic expressions on startup, leading to code injection (CVE-2019-14868) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1757324 - CVE-2019-14868 ksh: certain environment variables interpreted as arithmetic expressions on startup, leading to code injection 6. Package List: Red Hat Enterprise Linux Client (v. 7): Source: ksh-20120801-140.el7_7.src.rpm x86_64: ksh-20120801-140.el7_7.x86_64.rpm ksh-debuginfo-20120801-140.el7_7.x86_64.rpm Red Hat Enterprise Linux ComputeNode (v. 7): Source: ksh-20120801-140.el7_7.src.rpm x86_64: ksh-20120801-140.el7_7.x86_64.rpm ksh-debuginfo-20120801-140.el7_7.x86_64.rpm Red Hat Enterprise Linux Server (v. 7): Source: ksh-20120801-140.el7_7.src.rpm ppc64: ksh-20120801-140.el7_7.ppc64.rpm ksh-debuginfo-20120801-140.el7_7.ppc64.rpm ppc64le: ksh-20120801-140.el7_7.ppc64le.rpm ksh-debuginfo-20120801-140.el7_7.ppc64le.rpm s390x: ksh-20120801-140.el7_7.s390x.rpm ksh-debuginfo-20120801-140.el7_7.s390x.rpm x86_64: ksh-20120801-140.el7_7.x86_64.rpm ksh-debuginfo-20120801-140.el7_7.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 7): Source: ksh-20120801-140.el7_7.src.rpm x86_64: ksh-20120801-140.el7_7.x86_64.rpm ksh-debuginfo-20120801-140.el7_7.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2019-14868 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is |