QID 352399

Date Published: 2021-06-24

QID 352399: Amazon Linux Security Advisory for glibc: ALAS2-2021-1656

<DIV ID="issue_overview"> in the gnu c library (aka glibc or libc6) through 2.29, proceed_next_node in posix/regexec.c has a heap-based buffer over-read via an attempted case-insensitive regular-expression match. (
cve-2019-9169 ) a flaw was found in glibc.
If an attacker provides the iconv function with invalid multi-byte input sequences in ibm1364, ibm1371, ibm1388, ibm1390, ibm1399 encodings, it fails to advance the input state, which could lead to an infinite loop in applications, resulting in a denial of service. (
cve-2020-27618 ) </DIV>

Note: The preceding description block is extracted directly from the security advisory. Using automation, we have attempted to clean and format it as much as possible without introducing additional issues.

Allows unauthorized disclosure of information; allows unauthorized modification; allows disruption of service.

  • CVSS V3 rated as Critical - 9.8 severity.
  • CVSS V2 rated as High - 7.5 severity.
    • Solution
    Please refer to Amazon advisory: ALAS2-2021-1656 for affected packages and patching details, or update with your package manager.
    Vendor References

    CVEs related to QID 352399

    CVE-2020-27618 | CVE-2019-9169 |
    Software Advisories
    Advisory ID Software Component Link
    ALAS2-2021-1656 Amazon Linux 2 URL Logo alas.aws.amazon.com/AL2/ALAS-2021-1656.html
    By selecting these links, you may be leaving CVEreport webspace. We have provided these links to other websites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other websites that are more appropriate for your purpose. CVEreport does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, CVEreport does not endorse any commercial products that may be mentioned on these sites. Please address comments about any linked pages to [email protected].