Double Free Affecting libpcap1 package, versions <1.10.1-150400.3.3.2


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (12th percentile)

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  • Snyk IDSNYK-SLES155-LIBPCAP1-7932048
  • published12 Sept 2024
  • disclosed11 Sept 2024

Introduced: 11 Sep 2024

CVE-2023-7256  (opens in a new tab)
CWE-415  (opens in a new tab)

How to fix?

Upgrade SLES:15.5 libpcap1 to version 1.10.1-150400.3.3.2 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libpcap1 package and not the libpcap1 package as distributed by SLES. See How to fix? for SLES:15.5 relevant fixed versions and status.

In affected libpcap versions during the setup of a remote packet capture the internal function sock_initaddress() calls getaddrinfo() and possibly freeaddrinfo(), but does not clearly indicate to the caller function whether freeaddrinfo() still remains to be called after the function returns. This makes it possible in some scenarios that both the function and its caller call freeaddrinfo() for the same allocated memory block. A similar problem was reported in Apple libpcap, to which Apple assigned CVE-2023-40400.

CVSS Base Scores

version 3.1