critical
10
CWE
787 119 1103
Advisory Published
CVE Published
Updated

CVE-2016-2842: Buffer Overflow

First published: Thu Mar 03 2016(Updated: )

It was found that doapr_outch function in crypto/bio/b_print.c in OpenSSL 1.0.1 before 1.0.1s and 1.0.2 before 1.0.2g does not verify that a certain memory allocation succeeds, which allows remote attackers to cause a denial of service (out-of-bounds write or memory consumption) or possibly have unspecified other impact via a long string, as demonstrated by a large amount of ASN.1 data. This issues is different than <a href="https://access.redhat.com/security/cve/CVE-2016-0799">CVE-2016-0799</a>. Upstream patch: <a href="https://git.openssl.org/?p=openssl.git;a=commit;h=578b956fe741bf8e84055547b1e83c28dd902c73">https://git.openssl.org/?p=openssl.git;a=commit;h=578b956fe741bf8e84055547b1e83c28dd902c73</a>

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow to fix
redhat/openssl<1.0.1
1.0.1
redhat/openssl<1.0.2
1.0.2
redhat/openssl<0:1.0.1e-48.el6_8.1
0:1.0.1e-48.el6_8.1
redhat/openssl<0:1.0.1e-42.el6_7.5
0:1.0.1e-42.el6_7.5
redhat/openssl<1:1.0.1e-51.el7_2.5
1:1.0.1e-51.el7_2.5
OpenSSL libcrypto=1.0.1
OpenSSL libcrypto=1.0.1-beta1
OpenSSL libcrypto=1.0.1-beta2
OpenSSL libcrypto=1.0.1-beta3
OpenSSL libcrypto=1.0.1a
OpenSSL libcrypto=1.0.1b
OpenSSL libcrypto=1.0.1c
OpenSSL libcrypto=1.0.1d
OpenSSL libcrypto=1.0.1e
OpenSSL libcrypto=1.0.1f
OpenSSL libcrypto=1.0.1g
OpenSSL libcrypto=1.0.1h
OpenSSL libcrypto=1.0.1i
OpenSSL libcrypto=1.0.1j
OpenSSL libcrypto=1.0.1k
OpenSSL libcrypto=1.0.1l
OpenSSL libcrypto=1.0.1m
OpenSSL libcrypto=1.0.1n
OpenSSL libcrypto=1.0.1o
OpenSSL libcrypto=1.0.1p
OpenSSL libcrypto=1.0.1q
OpenSSL libcrypto=1.0.1r
OpenSSL libcrypto=1.0.2
OpenSSL libcrypto=1.0.2-beta1
OpenSSL libcrypto=1.0.2-beta2
OpenSSL libcrypto=1.0.2-beta3
OpenSSL libcrypto=1.0.2a
OpenSSL libcrypto=1.0.2b
OpenSSL libcrypto=1.0.2c
OpenSSL libcrypto=1.0.2d
OpenSSL libcrypto=1.0.2e
OpenSSL libcrypto=1.0.2f
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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2016-2842?

    CVE-2016-2842 has a severity rating that allows remote attackers to cause a denial of service through out-of-bounds write or memory consumption.

  • How do I fix CVE-2016-2842?

    To fix CVE-2016-2842, update OpenSSL to version 1.0.1s or 1.0.2g or later.

  • Which versions are affected by CVE-2016-2842?

    CVE-2016-2842 affects OpenSSL versions 1.0.1 through 1.0.1r and 1.0.2 through 1.0.2f.

  • Can CVE-2016-2842 lead to data breaches?

    While CVE-2016-2842 primarily leads to denial of service, it could potentially expose a system to further attacks if exploited.

  • What software should I upgrade to mitigate CVE-2016-2842?

    To mitigate CVE-2016-2842, upgrade affected software packages such as OpenSSL from the specified vulnerable versions.

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