Description
pcap-linux.c in libpcap 1.1.1 before commit ea9432fabdf4b33cbc76d9437200e028f1c47c93 when snaplen is set may truncate packets, which might allow remote attackers to send arbitrary data while avoiding detection via crafted packets.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libpcap | 1.1.1-4 | — |
| Debian 13 | libpcap | 1.1.1-4 | — |
| Debian 12 | libpcap | 1.1.1-4 | — |
References
- http://article.gmane.org/gmane.network.tcpdump.devel/4968
- [oss-security] 20140208 Fwd: Old CVE ids, public, but still mailing-list
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=623868
- [oss-security] 20171019 CVE requests: ffmpeg/widelands/jifty::db/lilo/libpcap mailing-list
- http://thread.gmane.org/gmane.network.tcpdump.devel/5018
- https://bugs.debian.org/cgi-bin/bugreport.cgi?att=1%3Bbug=623868%3Bfilename=0001-Fix-the-calculation-of-the-frame-size-in-memory-mapp.patch%3Bmsg=10
- https://security-tracker.debian.org/tracker/CVE-2011-1935/