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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.0539 ksh security update 18 February 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: ksh Publisher: Red Hat Operating System: Red Hat Enterprise Linux Server 6 Red Hat Enterprise Linux WS/Desktop 6 Impact/Access: Execute Arbitrary Code/Commands -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-14868 Reference: ESB-2020.0426 Original Bulletin: https://access.redhat.com/errata/RHSA-2020:0515 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: ksh security update Advisory ID: RHSA-2020:0515-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2020:0515 Issue date: 2020-02-17 CVE Names: CVE-2019-14868 ===================================================================== 1. Summary: An update for ksh is now available for Red Hat Enterprise Linux 6. 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 Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, 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 Desktop (v. 6): Source: ksh-20120801-38.el6_10.src.rpm i386: ksh-20120801-38.el6_10.i686.rpm ksh-debuginfo-20120801-38.el6_10.i686.rpm x86_64: ksh-20120801-38.el6_10.x86_64.rpm ksh-debuginfo-20120801-38.el6_10.x86_64.rpm Red Hat Enterprise Linux HPC Node (v. 6): Source: ksh-20120801-38.el6_10.src.rpm x86_64: ksh-20120801-38.el6_10.x86_64.rpm ksh-debuginfo-20120801-38.el6_10.x86_64.rpm Red Hat Enterprise Linux Server (v. 6): Source: ksh-20120801-38.el6_10.src.rpm i386: ksh-20120801-38.el6_10.i686.rpm ksh-debuginfo-20120801-38.el6_10.i686.rpm ppc64: ksh-20120801-38.el6_10.ppc64.rpm ksh-debuginfo-20120801-38.el6_10.ppc64.rpm s390x: ksh-20120801-38.el6_10.s390x.rpm ksh-debuginfo-20120801-38.el6_10.s390x.rpm x86_64: ksh-20120801-38.el6_10.x86_64.rpm ksh-debuginfo-20120801-38.el6_10.x86_64.rpm Red Hat Enterprise Linux Workstation (v. 6): Source: ksh-20120801-38.el6_10.src.rpm i386: ksh-20120801-38.el6_10.i686.rpm ksh-debuginfo-20120801-38.el6_10.i686.rpm x86_64: ksh-20120801-38.el6_10.x86_64.rpm ksh-debuginfo-20120801-38.el6_10.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 <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2020 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBXkpR39zjgjWX9erEAQgOuA//VVykbqa3Z1flEfzz4+aWXxhfmuF3sEn/ RPoENKb82LLn2BYPkke06fzpU0GynEwgq3AsqezB0GhcU30ErhaEMKb7UggFgjNL /6rbQu/3I9wEbZ9BsiYieuhNY/B77RuaOWYt96M9xthj8naEW4IEf7614ayiFBgu Kcm0g1/4SLiU6jayisb7dlO1yjDSdlM5NUDsYeZu4axMmkGzsxoA1uC8SNe7exee RV03H0TGeg4nXdSrGu6dhpbt8MAT7KM7wtIVpfSzqmepyhCeuqi5yitUeVFtWr3M rcgNRSgG0/IqZJTuccqtpVBWncQisewSfr/AUPpo6LSQOF4UI+PlH0iVJQsitVHi CIjBvlY/AAN2t3efd80nC9sOIOT0AnEyI1NkfRgdybsivarwkT9VYjkdKah7lBQC QBNPXB8elyxjtoB1suhlQPqmSkd4VQ/AP0P2AeB+01fBzV4I1rS+sgcDmiWyOyl4 Xqc4G8Q3eX+Z2N3kGaWtlW92rRF1hhvDeT3VOdHnRD9dofuYQAEVnJGgUOpWQOmA jkMCS4GipUrfyOZVR8iXjYqGoIo4JF2kM5trBYCo5gXW+tiKbZ9dTCQCmqtgVYwK QkH3XQR967JVz1uK1sDB0Ngd5HPqFlvZg+vGcl/xJPr3s8elpOM6AI6vJRgFAArd 1EP8ndPtKmA= =UPpY - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. 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