ALAS2-2020-1509


Amazon Linux 2 Security Advisory: ALAS-2020-1509
Advisory Release Date: 2020-10-22 17:27 Pacific
Advisory Updated Date: 2020-10-22 22:38 Pacific
Severity: Medium

Issue Overview:

An exploitable code execution vulnerability exists in the quota file functionality of E2fsprogs 1.45.3. A specially crafted ext4 partition can cause an out-of-bounds write on the heap, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability. (CVE-2019-5094 )

A code execution vulnerability exists in the directory rehashing functionality of E2fsprogs e2fsck 1.45.4. A specially crafted ext4 directory can cause an out-of-bounds write on the stack, resulting in code execution. An attacker can corrupt a partition to trigger this vulnerability. (CVE-2019-5188 )


Affected Packages:

e2fsprogs


Issue Correction:
Run yum update e2fsprogs to update your system.

New Packages:
aarch64:
    e2fsprogs-1.42.9-19.amzn2.aarch64
    e2fsprogs-libs-1.42.9-19.amzn2.aarch64
    e2fsprogs-static-1.42.9-19.amzn2.aarch64
    e2fsprogs-devel-1.42.9-19.amzn2.aarch64
    libcom_err-1.42.9-19.amzn2.aarch64
    libcom_err-devel-1.42.9-19.amzn2.aarch64
    libss-1.42.9-19.amzn2.aarch64
    libss-devel-1.42.9-19.amzn2.aarch64
    e2fsprogs-debuginfo-1.42.9-19.amzn2.aarch64

i686:
    e2fsprogs-1.42.9-19.amzn2.i686
    e2fsprogs-libs-1.42.9-19.amzn2.i686
    e2fsprogs-static-1.42.9-19.amzn2.i686
    e2fsprogs-devel-1.42.9-19.amzn2.i686
    libcom_err-1.42.9-19.amzn2.i686
    libcom_err-devel-1.42.9-19.amzn2.i686
    libss-1.42.9-19.amzn2.i686
    libss-devel-1.42.9-19.amzn2.i686
    e2fsprogs-debuginfo-1.42.9-19.amzn2.i686

src:
    e2fsprogs-1.42.9-19.amzn2.src

x86_64:
    e2fsprogs-1.42.9-19.amzn2.x86_64
    e2fsprogs-libs-1.42.9-19.amzn2.x86_64
    e2fsprogs-static-1.42.9-19.amzn2.x86_64
    e2fsprogs-devel-1.42.9-19.amzn2.x86_64
    libcom_err-1.42.9-19.amzn2.x86_64
    libcom_err-devel-1.42.9-19.amzn2.x86_64
    libss-1.42.9-19.amzn2.x86_64
    libss-devel-1.42.9-19.amzn2.x86_64
    e2fsprogs-debuginfo-1.42.9-19.amzn2.x86_64