CVE-2021-35516
Apache Commons Compress 1.6 to 1.20 denial of service vulnerability
In short
A flaw in Apache Commons Compress allows attackers to craft tiny 7Z archive files that trick the software into using enormous amounts of memory, causing it to crash. This can be exploited to disable services that process 7Z files.
Technical detail
CWE-130 (Improper Handling of Length Parameters) in the sevenz package causes excessive memory allocation when parsing specially crafted 7Z archives. The attack vector is local/remote file processing with minimal input size, leading to out-of-memory conditions and denial of service.
Summary generated and translated by AI from the official description.
When reading a specially crafted 7Z archive, Compress can be made to allocate large amounts of memory that finally leads to an out of memory error even for very small inputs. This could be used to mount a denial of service attack against services that use Compress' sevenz package.
Affected products
Apache Software Foundation · Apache Commons CompressWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://commons.apache.org/proper/commons-compress/security-reports.htmlhttps://lists.apache.org/thread.html/r67ef3c07fe3b8c1b02d48012149d280ad6da8e4cec253b527520fb2b%40%3Cdev.poi.apache.org%3Ehttps://lists.apache.org/thread.html/r9f54c0caa462267e0cc68b49f141e91432b36b23348d18c65bd0d040%40%3Cnotifications.skywalking.apache.org%3Ehttps://lists.apache.org/thread.html/racd0c0381c8404f298b226cd9db2eaae965b14c9c568224aa3f437ae%40%3Cnotifications.skywalking.apache.org%3Ehttps://lists.apache.org/thread.html/rb064d705fdfa44b5dae4c366b369ef6597951083196321773b983e71%40%3Ccommits.pulsar.apache.org%3Ehttps://lists.apache.org/thread.html/rb6e1fa80d34e5ada45f72655d84bfd90db0ca44ef19236a49198c88c%40%3Cnotifications.skywalking.apache.org%3Ehttps://lists.apache.org/thread.html/rb7adf3e55359819e77230b4586521e5c6874ce5ed93384bdc14d6aee%40%3Cnotifications.skywalking.apache.org%3Ehttps://lists.apache.org/thread.html/rba65ed5ddb0586f5b12598f55ec7db3633e7b7fede60466367fbf86a%40%3Cnotifications.skywalking.apache.org%3Ehttps://lists.apache.org/thread.html/rd4332baaf6debd03d60deb7ec93bee49e5fdbe958cb6800dff7fb00e%40%3Cnotifications.skywalking.apache.org%3Ehttps://lists.apache.org/thread.html/rf5b1016fb15b7118b9a5e16bb0b78cb4f1dfcf7821eb137ab5757c91%40%3Cannounce.apache.org%3Ehttps://lists.apache.org/thread.html/rf68442d67eb166f4b6cf0bbbe6c7f99098c12954f37332073c9822ca%40%3Cuser.commons.apache.org%3Ehttps://lists.apache.org/thread.html/rfba19167efc785ad3561e7ef29f340d65ac8f0d897aed00e0731e742%40%3Cnotifications.skywalking.apache.org%3E